Glenn Rhee (TV Series)

"He tied me to a chair. Beat me, and threw a Walker in the room. Maybe I could call it even, but he...he took Maggie to a man who terrorized her. Humiliated her. I care more about her than I care about me."

- Glenn to Daryl about forgiving Merle.

Glenn is a main protagonist in The Walking Dead. He is commonly the main supply runner for the group. Glenn makes his first appearance physically in "Guts" and helps Rick Grimes safely escape the walkers on the street and meet up with his group. Eventually, after the group stays on the Greene Farm, Glenn is engaged to Hershel Greene's daughter, Maggie Greene.

Appearance and Personality
Glenn is a thin and agile Asian male of Korean descent in his early 20's with black hair and a light complexion.

Glenn is bright, loyal, resourceful, quick-thinking and brave. Keenly aware of the extreme dangers he puts himself in for the group, his youth makes him willing to take the risk. Glenn thinks on his feet and shows great compassion and humanity. Despite all the horrors he has seen, he maintains a youthful enthusiasm for life and its unexpected pleasures. He is an integral part of the group, showing surprising depth and emotion when experiencing even the most devastating tragedies. In the second season while on the farm, he begins a relationship with Maggie Greene. Over the course of the latter half of season two and the third season, he has become extremely close and loving toward her, doing whatever is necessary to keep her safe. He is trustworthy and loyal, as seen in the episode "When the Dead Come Knocking", when Glenn and Maggie are captured by The Governor, he is brutally interrogated by Merle but will not reveal where the rest of Rick's group have set up camp.

Atlanta, Georgia
Glenn was originally from Michigan, born of Korean immigrants. He moved to Atlanta sometime within his adult years, he delivered pizzas for a living. As it turned out, his knowledge of every shortcut in Atlanta proves extremely useful to the group's scavenging needs. In the episode "Cherokee Rose", Glenn wears a shirt that has some Boy Scout markings on it, a sign that he might have been a Boy Scout.

He knows the city fairly well and can navigate his way through back alleys and the streets. When the outbreak began and the city was converted into a refugee center, Glenn, being resourceful, was able to survive despite the city slowly being overrun by walkers.

In the episode, "Nebraska", Glenn talked about his mother and revealed that he has multiple sisters, but their fate after the apocalypse is currently unknown.

"Days Gone Bye"
At the end of the episode. Rick Grimes is hiding inside a tank, Glenn contacts Rick via a radio after he shoots a walker inside it and says; "Hey you... Dumb-ass... Yeah you in the tank... Cozy in there?".

"Guts"
Rather than go into Atlanta alone, Glenn brings more people with him to scavenge for supplies (though he later comes to regret the idea since this was the first time he did it. And the results were not as favorable as working alone.) He spots Rick as he was attacked by a mob of zombies upon entering the city and see him escape into a tank parked in the middle of the street. Glenn manages to reach him through the CB in the tank and helps him escape the zombie mob. He then later leads Rick to his group as they try to think of what to do next since the zombies are aware of their presence (due to Rick's earlier action, though he was unaware there were survivors). At first the group thinks they can escape through the sewer, but Glenn scouting it with Morales reveal bars blocking their way and a zombie feasting on a rat. After telling the others that idea is out, Rick gets the idea to put zombie entrails on their person to mask their scent and wade through the zombies to get transportation. Glenn volunteers to go with him and the two make their way to a parking lot. The plan works until a sudden rainstorm passes through and washes off the entrails, giving the two away. Rick and Glenn are forced to run but manage to make it to the lot and secure a loading truck. Realizing they need a distraction, Rick hot-wires a Dodge Challenger and has Glenn lead the zombies away from the store while Rick picks up the others. The plan succeeds and Glenn is seen leaving Atlanta in the Challenger, whooping in victory. He makes a great asset to Rick's group.

"Tell It to the Frogs"
After they all get back to the campsite and reunite with the other survivors, Glenn is asked by Rick to go with him back in the city because he knows his way in and out. He leads Rick, T-Dog, and Daryl Dixon to the building that Merle Dixon was handcuffed onto. Heading up the stairs they find no walkers. On the roof, Daryl calls out to Merle, but they only find Merle's hand, a bloody hacksaw, and the bloody handcuffs.

"Vatos"
When Rick decides to go back for Merle he enlists the help of Glenn because of his knowledge of the city. Glenn reluctantly agrees and joins the party to go save Merle. In the city, they realize that Merle was able to escape by cutting off his hand and after following Merle's bloody trail the group starts to organize how to get the Bag of Guns back. Glenn organizes the plan to get the guns like a skilled tactician arguing that he's agile enough to get in and out of the streets. At one point Daryl asks Glenn what his profession was before the apocalypse to which Glenn replies, "Delivered pizzas. Why?" Glenn succeeds in acquiring the weapons, but is taken hostage by a group called the Vatos who also want the guns. Rick and the group come to the Vatos hideout with a hostage called Miguel but the negotiation goes badly and both groups draw their guns on each other. The battle is interrupted by Abuela, a woman who reveals to the group that the Vatos are actually looking after an abandoned nursing home and its residents. The group decide to split the guns between themselves and the Vatos, and return to the spot where they left the van only to find it missing. Assuming Merle to be the culprit, they immediately head back to camp and are just in time to fend off an attacking herd of walkers.

"Wildfire"
After the attack on the campsite which left many people dead, he and the others struggled to decide what to do with Jim, who was bitten. Glenn says his goodbyes to him, as does everyone else, and leaves the man sitting by a tree. Glenn and the group arrive at the CDC only to find it seemingly abandoned, and they are about to leave until a door opens, bathing the group in light.

"TS-19"
Following their arrival at the CDC, Glenn takes advantage of the building's luxuries (food, clean clothes, etc.), and follows around the rest of the survivors. He, along with everyone else except for Jacqui and Dr. Edwin Jenner, escape the building before it explodes, and then head to Fort Benning, a military base.

"What Lies Ahead"
Glenn was forced to stop along with the others when Dale's RV breaks down. He is then later seen fixing an old truck; when a herd of zombies come their way, he hides under a car with Shane. Sophia then gets chased by a duo of zombies and the group looks for, but she is not found by the end of the episode.

"Bloodletting"
Glenn and the group continue to look for Sophia when all of a sudden Maggie appears on a horse and takes Lori and tells Glenn and the others to head to their farm they make it back to the highway, but Carol does not want to go and wants to keep looking for Sophia. Dale, Daryl, Carol and Andrea stay at the RV to see if Sophia comes back while Glenn and T-Dog head to the farm.

"Save The Last One"
Glenn makes it to the farm with T-Dog and watches Hershel perform surgery on Carl he then sits out on the porch and prays for this to end, he starts to form a relationship with Maggie (Hershel's daughter) and then waits for Shane and Otis to return to the farm with the supplies. Shane reveals that Otis is dead and Glenn feels sorry even though he didn't know him.

"Cherokee Rose"
At the farm, Dale and T-Dog find a walker inside of one of the wells, and the group quickly rallied to devise a plan to rescue the walker from the well without contaminating the water. The survivors then lower down Glenn as bait. The plan goes awry when the old rusty water pump they’re using as a pulley breaks, sending Glenn within reach of the ravenous reverent. They save Glenn who, despite his panic, managed to lasso the corpulent creature. Unfortunately, the risk and subsequent struggle to haul out the zombie is all for nothing, as its rancid body gets snagged on the lip of the well only to rip in half, dropping its fetid bowels into the water below. Later, Glenn and Maggie go for an excursion to the local pharmacy to get more medical supplies and a pregnancy test for Lori, and while they are there, they end up having sex.

"Chupacabra"
Glenn is frustrated by Maggie's hot and cold behavior towards him. He shares a theory with Dale that all of the women are acting strangely because their menstrual cycles are aligning. Dale advises him to keep that theory to himself, and also discovers that Glenn and Maggie had sex. He mentions that Hershel would likely not approve, to which Glenn replies, "tomorrow I might be dead." Glenn is the only person at this point that knows Lori is pregnant. Maggie passes a note to Glenn during dinner asking him where he thinks they should have their second sexual encounter, and he replies the (barn) loft. But Maggie does not read his reply right away. Glenn sets out to investigate the barn and wait for Maggie, but makes the shocking discovery that the barn is already in-use as a containment and concealment vessel for numerous walkers.

"Secrets"
Glenn, unable to hold the secret of the barn, tells Dale about it, as well as Lori's pregnancy. After this incident, Maggie feels betrayed by Glenn and initially refuses to speak with him, though she does another run into town with him. While there, Maggie is attacked by a Walker and Glenn jumps into to rescue her. They manage to get Lori´s morning after pills, which Rick finds.

"Pretty Much Dead Already"
Glenn reveals to the whole group that there are walkers in the barn. Maggie is again frustrated by Glenn's inability to keep secrets, but he reassures her that it was to keep her safe. Later, when he participates in the shooting at the end of the episode with Shane, Andrea, T-Dog, and Daryl, he first looks at Maggie for approval of shooting, and she agrees.

"Nebraska"
At Hershel's home, Maggie asks Glenn if he would stay if the rest of his group were to leave, but Glenn is unsure how to answer. Beth suddenly grows ill and collapses. She suffers from a fever and other serious symptoms, and seems to be in some state of shock. The group looks for Hershel to care for Beth, but discover that he has vanished, leaving behind his empty flask as a clue. Rick decides to look for Hershel at the local bar, and takes Glenn as backup. En route to town, Glenn confides to Rick that Maggie told him she loved him. Rick says that they need more good things like that in their lives, and that he should embrace those moments. At the bar, Rick and Glenn find Hershel and tells him about Beth. Hershel reflects that he had robbed his daughters of a normal grieving process by giving them a false hope, and allowing himself to believe it too. Hershel also says that Rick must relate, saying he saw the same feeling wash over Rick's face when Sophia emerged from the barn that there is no hope. Rick argues that nothing has really changed, and people are counting on them to be strong. They are interrupted when the bar door opens and two strange men walk in, giving their names as Dave and Tony. The five men converse cordially at first, but the strangers become impatient when Rick's group will not divulge information about the Greene farm. Glenn and the group are immediately untrustworthy of the strangers when Tony loses his patience and says he is considering shooting them all. When Dave reaches for his gun, Glenn watches as Rick pulls out his gun and shoots the two men.

"Triggerfinger"
At town, after killing Dave and Tony, Rick, Hershel, and Glenn are about to leave but instead get pinned down in the saloon by members of Dave and Tony's group: Sean, Nate, and Randall. Rick tells them that Dave and Tony pulled their guns out on them first but the group begin to shoot. Rick tells Glenn to check the back exit. As Glenn walks down some creaky steps and approaches the door, a shadow outside reaches for the handle and begins to twist it but Glenn shoots through the glass and scares him off. Rick tells Hershel to cover Glenn while he makes a run for the car. A man named Sean who was part of the group sneaks up behind Glenn and attempts to shoot him but Hershel shoots and wounds Sean, who starts crying out in pain. Rick asks Hershel what happened, he says he thinks Glenn was hit. Rick finds Glenn is just frozen behind a dumpster and approaches him. Rick, Hershel, and Glenn return to the farm with Randall blind folded in the backseat as a hostage. The group argues on what to do with Randall, Rick says they will fix him up and than drop him off to defend himself but Shane thinks that he will tell his group where the farm is and this will start a war. Hershel reminds Shane that it is his farm and while he is there he needs to keep his mouth shut. Maggie pulls Glenn aside and asks him if anything is wrong, he explains how her father saved his life, and that he froze and could not do anything to help. He had froze because she told him that he loved him, and he was afraid to die because of how it would affect her. She tries to embrace him, but he pushes her away.

"18 Miles Out"
Glenn is not seen this episode, but is talked about by Lori and Maggie about how he froze during the shootout between Rick, himself and Hershel and Dave and Tony's group.

"Judge, Jury, Executioner"
In the farmhouse, Glenn finds Hershel checking up on Beth. Hershel asks Glenn about his family and tells him about his own Irish heritage. He hands Glenn a pocket watch that belonged to his grandfather. "No man is good enough for your little girl," Hershel says, "until one is". As the sun sets, Rick again asks Lori if she thinks he's doing the right thing. Lori nods. The group gathers in the house. Rick asks if anyone thinks Randall should be spared. Dale posits that the only people who think so are himself and Glenn, but Glenn too sides with Rick. "He's not one of us," Glenn offers. Glenn along with all the other survivors gather around Dale before he is shot by Daryl to prevent reanimation.

"Better Angels"
Glenn attends Dale's funeral and is sad because he regrets going against the latter's wishes to spare Randall, but Andrea comforts him and tells him that Dale was proud of him overall and knew how much Glenn cared for him. Later, Randall disappears from the barn and while the group are looking for him Shane emerges from the woods claiming Randall has escaped and is armed. Glenn and Daryl are sent to look for him in the woods. They are attacked by a walker, and when Glenn kills it, it turns out to be a reanimated Randall. Both Daryl and Glenn are puzzled by the lack of bites on the body, and also find it strange how the neck has been snapped. They return to the farm to tell the rest of the group about what happened.

"Beside the Dying Fire"
When the zombies invade the farm, Glenn and Maggie get into Shane's car and attempt to corral the zombies and lead them away from the farm. Glenn shoots multiple zombies until he realizes there is too many of them. When they are overwhelmed, Glenn convinces Maggie to leave the farm. As morning hits, the two continue to drive as Maggie feels shaken from the attack on the farm. She asks Glenn if her family escaped; he comforts her though insists that he drive instead. As they make their way back to the highway where the group left supplies for Sophia, they meet up with Rick, Carl, and Hershel who await them. Daryl, Carol, Lori, Beth and T-Dog also arrive. Glenn asks about Andrea, but T-Dog exclaims she "went down" during the attack. The group presses on but stops along the road when Rick runs out of gas. Rick's leadership is questioned when he reveals the secret he'd been hiding about the walkers; they're all infected. Glenn lashes out at Rick for not telling the group as he did when he told "for the good of everyone" about the barn. They take shelter for the night. A prison can be seen looming in the distance.

"Seed"
Glenn is seen with the group when they stumble upon the abandoned house and Rick, Carl, Daryl, and T-Dog kill the Walkers inside of it. The group is forced to flee, however, when another herd of walkers begins to approach their location. After Daryl and Rick stumble upon the prison while hunting, Glenn helps out to distract and kill the walkers while Rick runs inside the prison yard to close the main gate. The next day, Glenn assists Rick, Daryl, Maggie, and T-Dog in killing the remainder of the Walkers on the interior of the prison. The romantic relationship between him and Maggie continues as the two share a cell on the inside of the prison and cuddle as he checks Maggie for scratch marks. The next day after sleeping in the inside of the prison, Rick, Daryl, T-Dog, Glenn, Maggie, and Hershel suit up and explore more of the inside of the prison in search of its infirmary and cafeteria. The group is ambushed by Walkers, causing both Maggie and Glenn to split up from the rest. Hershel insists that himself, Rick, Daryl, and T-Dog go back to look for them, and Hershel manages to find them, but is bit in the right calf by a Lurker lying against the wall. Glenn assists them in taking Hershel to the cafeteria, and is present when Rick amputates the lower portion of Hershel's right leg to keep the infection from spreading.

"Sick"
Glenn is seen mostly by Hershel's side in the episode, and helps to console Maggie. Carol pulls him aside despite orders by Rick to stay at Hershel's side, needing his assistance in killing a female walker to use as practice for a C-Section as she may be the one to deliver Lori's baby due to Hershel's condition and because of Carl being born that way.

"Walk With Me"
Glenn does not appear in this episode.

"Killer Within"
Glenn is first called down from one of the guard towers, where he was having sexual intercourse with Maggie, to help Rick, Daryl, Carol and T-Dog move some cars. He witnesses the beginning of the walker invasion, and he, along with Rick and Daryl, sprint to the gate so they can enter the prison and help out the group, as the ones trapped with the walkers are greatly outnumbered. He helps clear out the prison and to disable the alarm boxes by shooting them. He accompanies Axel to the generator room to disable the generators. He is present when the group discovers T-Dog's devoured body, along with Carol's headpiece.

"Say the Word"
Glenn is seen digging graves for Lori, Carol, and T-Dog. After allowing Oscar and Axel to dig the remaining graves, Glenn reveals to Hershel that he wishes they would have killed all of the prisoners on sight.

When Maggie goes out on a scavenging trip to find baby formula with Daryl, Glenn comforts her, telling her to be safe and that he loves her.

Glenn is later seen, pleading with Rick not to enter the room containing Lori's body. Rick retaliates, shoving Glenn into the wall, and walks away without a word.

"Hounded"
Glenn announces that he and Maggie are planning on going on a scavenging trip. Glenn is seen driving a truck with Maggie into a supermarket parking lot. Unbeknownst to them, they are being watched by Michonne. They open the door to be greeted by a crow, and some flying papers. Maggie then tells him to retrieve a duck toy, for the new baby. He also scavenges enough powdered formula to fill an entire shopping basket. Suddenly, they are confronted by Merle. Glenn is clearly surprised to see Merle still alive. Merle says he wants to travel back with them to their base to find his brother, Daryl, in which Glenn refuses. Merle attacks and takes Maggie hostage. With a gun to her head, he forces Glenn to drive back to Woodbury.

"When the Dead Come Knocking"
Glenn is brutally interrogated by Merle, who yearns to learn the location of the camp where the Atlanta survivors have moved into. After viciously beating him, Glenn still refuses to talk. However, Glenn ends up angering Merle by head-butting him in the nose,prompting him to beat Glenn harder. After a while and still not talking, Merle releases a walker into the room. Glenn uses his feet to knock stuff on it, but eventually breaks the chair and stabs it. Merle comes back later with Martinez, and behind them Maggie is held topless by The Governor. Glenn assumes Maggie was raped and tries to attack them. The Governor gets angry and points his gun at Glenn's head, but Glenn says nothing. Maggie breaks and tells him everything. The Governor leaves along with Merle and Martinez. Maggie then runs crying into Glenn's arms.

"Made to Suffer"
Glenn and Maggie are first seen sitting in the room with the dead walker he killed in the previous episode. Glenn breaks off a shard of bone from the walker's forearm and hands it to Maggie. Glenn and Maggie ambush Merle and Warren successfully when they arrive to take them to the "screamer pits", but they are restrained when Martinez approaches and holds them at gunpoint. While being escorted away a second time, Rick's group arrives and uses a flash grenade, allowing them to rescue Glenn and Maggie. Glenn informs Daryl that Merle was the one responsible for torturing him, and Glenn takes part in the Woodbury shootout, despite being badly injured. Glenn also trains his gun on Michonne, along with Rick and Maggie, when she rejoins them outside of Woodbury following the shootout.

"The Suicide King"
Glenn stays behind when Rick and Maggie attack Woodbury, and attempts to attack Merle when Rick, Maggie, and Daryl return back to the road where he and Michonne are waiting. Glenn pulls a walker out from a truck, and begins to stomp on its head several times, appearing frustrated. Glenn is angered at Rick for not taking the opportunity to kill The Governor during the attack and for allowing Daryl to leave them by going with Merle. He is also infuriated about what he thinks The Governor did to Maggie, which is rape her. Rick tells Glenn that finding Daryl was the priority. Glenn is later seen being taken care of by Hershel, and it also appears that there is tension between him and Maggie.

"Home"
Glenn proposes that The Prison survivors defend themselves from The Governor by attacking Woodbury immediately, and inquires to Michonne about the town. Hershel, however, remarks that Glenn's decision to take over the leadership from Rick may be unwise at the time, due to Maggie still recovering from her and Glenn's detention and torture in Woodbury. He advises Glenn to comfort Maggie but Glenn first decides to search for the origin of the walkers with assistance from Carl. Glenn obliges to Hershel's request after completing this task. Upon talking to Maggie, he asks her why she is acting depressed, and she responds with explaining the abuse she endured from The Governor. He then asks her if she was raped, to which she responds with a "no," which relieves Glenn, but annoys Maggie. After searching "The Tombs" of The Prison, he ventures outside to search for the breach in the building. He drives off, only to return again during The Governor's attack, just in time to rescue Hershel and Michonne.

"I Ain't a Judas"
Glenn is seen with the rest of the group, discussing the Woodbury situation, and sides with Rick's decision that they aren't leaving The Prison. Rick, Glenn, and Hershel are discussing what to do with Merle. Glenn suggests using Merle as a bargaining chip for The Governor. When Andrea visits The Prison, Glenn tells her that if The Governor wants a war, he's got one. Later, he gives Andrea a spare car to drive back to Woodbury in.

"Arrow on the Doorpost"
While Rick, Daryl and Hershel are away dealing with the Governor, Glenn makes the decision for the group and does not want anybody to interfere with Rick. Merle insists on going to kill the Governor, but Glenn angrily tells him no. Before Merle walks out the prison door, him and Glenn get in a brawl that Beth stops with a gunshot in the air. Glenn and Merle argue briefly before going separate ways. Glenn goes outside to check on Maggie and apologizes for how he's been acting. The two back up into the garage and have sex. When Rick returns to the prison, Glenn and the rest of the group listens to what Rick has to say.

"Prey"
Glenn did not appear in this episode

"This Sorrowful Life"
Daryl attempts to have Merle apologize to Glenn for his wrongdoings, but Glenn tells Daryl that he would probably forgive Merle if it wasn't for the fact that he brought Maggie to The Governor, who terrorized and humilated her. Glenn visits Hershel and says that he now understands why Hershel gave him the pocket watch and tells Hershel that he wants to marry Maggie. Hershel gives Glenn his blessing. Glenn goes to look for rings on female walkers and he cuts a finger off and gives Maggie the ring and she agrees.

"Welcome to the Tombs"
Glenn appears shortly in this episode. He fends off the approaching Woodbury soldiers with Maggie in combat armor taken from the reanimated soldiers who were present in the prison when the survivors arrived. Later, he opens the gates to the prison for Woodbury citizens, looking stunned as he looks on with Maggie.

Season 4
Glenn will appear in this season.

Killed Victims
This list shows the victims Glenn has killed:
 * Greene Farm Inhabitants (Zombified)
 * Randall (Zombified)
 * Numerous counts of zombies.

Rick Grimes
"Nice moves there, Clint Eastwood. You're the new sheriff, come riding in to clean up the town?"

- Glenn jokingly remarking to Rick.

Glenn meets Rick when he is most in need and near suicide, left alone in the tank after his horse went down in downtown Atlanta. Despite much sarcasm against Rick, Glenn saved his life and would begin to see Rick's boldness surpassing his very own before introducing him to the Atlanta camp, ultimately reuniting him with his family. As time went on, Glenn became Rick's backbone of the camp and during their journey to the Greene farm. Despite learning of Lori using Glenn as an errand-boy to pick up Plan-B pills, Rick continued to acknowledge it was not his fault and later showed distress in constantly using the young man as a runner. When Hershel relapsed following the barn shoot-out, Glenn followed Rick into the town's bar where they found the Greene patriarch and Rick proceeded to lead him out of his dilemma. However, the very same trusting behavior he showed Rick went on to betray him as he was forced into a shoot-out with the others. After the fallout of this incident, Glenn continued to follow Rick blindly up until Maggie and himself were forced to abandon her father's farm. They eventually found the survivors of their group, including Rick, who admitted that they were all in infected with the mysterious zombie virus. This caused Glenn to doubt Rick, though it was later shown to have subsided after surviving with him side-by-side after many months under his leadership. Glenn even went as far as to try and calm Rick's disturbed reaction to Lori's death by attempting to bring him back. Met with hostility, Glenn subsided and allowed Rick to remain the way he was in hopes he would return to normality some how. Rick risked his life to infiltrate Woodbury and in turn saved Glenn from being executed by the Woodbury soldiers along with Maggie. Their relationship starts to crack again, they have a heated discussion on the road after Daryl left them and Maggie tries to stop them, as Rick becomes unstable Glenn starts questioning his leadership, telling Hershel Rick is wandering in crazy town. Glenn, upset because Merle stayed in the prison with them, tells Rick he would have never asked him to live with Shane after he tried to kill him.

Hershel Greene
"I'd trade any number of people for one of ours."

- Glenn to Hershel.

When Glenn first started hanging out with Maggie, Hershel was a little suspicious about him. He would often ask Maggie what she was doing with the "Asian boy". Hershel began to trust Glenn more, and even gave him a pocket watch that was passed on through Hershel's family for generations, signifying that he gives Glenn permission to be with his daughter. After returning to the prison and receiving medical care from Hershel, he mentions that he sees Glenn as his own son signifying his care for him. When Glenn asks for Maggie's hand, Hershel gives them his blessing, showing once again that he trusts him.

Dale Horvath
"There's walkers in the barn and Lori's pregnant."

- Glenn to Dale.

Glenn had a true friendship with Dale, frequently asking for advice and helping him fix the RV when Jim died. Dale is the first person Glenn talks to regarding his sexual encounter with Maggie, he also tells Dale both Lori and Maggie's secrets revealing the level of trust he had for him. Glenn saw Dale as a mentor type figure. Glenn shows that Dale's death hit him hard when he and Andrea were attempting to fix the RV, with Andrea telling him that Dale would be proud, this resulted with Glenn breaking down in tears as he reflected on how Dale was a true friend.

Maggie Greene
"I care more about her than I care about me."

- Glenn to Daryl about Maggie.

Maggie and Glenn were tasked with going on a supply run shortly after the Atlanta group arrived on Hershel's farm. On the supply run, the two end up having sex, which Maggie regards as a one time thing. Later, she decides to have sex with him again but he stumbles upon walkers in Hershel's barn. Maggie asks him not to tell anyone, but he eventually tells Dale, causing Maggie to become upset. When Glenn and Maggie make another run into town for supplies, Maggie gets attacked by a walker but Glenn is able to save her and kill the walker. This, along with Glenn's convincing, helps the two begin to mend their relationship. Right before Glenn leaves with Rick to find Hershel, Maggie tells him, "I love you".

Their relationship went through another rough patch after the shootout at the bar. Glenn told her that he froze because she told him that she loved him, and he was afraid to die because of how it would affect her. She tries to embrace him, but he pushes her away. With the help of Hershel's approval, their relationship heals once again. When they leave Hershel's farm due to it being overrun with walkers, Maggie is distraught but is comforted by Glenn.

In the following three months, Glenn and Maggie continue to care and support each another. When Maggie begins thinking pessimistically about her father's chances of survival, Glenn makes her think more positively. Later on, Maggie and Glenn make a run into town to get supplies for Lori's daughter but get captured by Merle and taken to Woodbury. When The Governor brings Maggie into Glenn's holding room with her shirt off, he believes that she was raped and becomes enraged. Maggie gives up the prison's location when The Governor threatens to kill Glenn. She later assures him that she wasn't harmed. Glenn does not believe her and wants revenge on Philip.

Later while on watch, Maggie and Glenn have a talk and they are in good terms again, they kiss and they have a passionate sexual encounter.

In "This Sorrowful Life", Glenn gives Maggie a ring cut off from the finger of a female walker outside the Prison after getting Hershel's blessing to marry her. Maggie accepts the ring, and the two become engaged.

Merle Dixon
"You're a pretty big snack for this fella, but you know what they say...he's just gonna be hungry again in an hour."

- Merle before setting a walker on Glenn.

Not much is known between the relationship of Merle and Glenn. But Glenn found Merle untrustworthy due to the fact  that Merle often abused the Atlanta group and possibly disliked Merle due to Merle's racism, temper, and poor decisions for example, shooting walkers on the rooftop and attracting attention. Despite that, Glenn was one of the 4 people along with Rick, Daryl, and T Dog that went back for Merle after Merle got handcuffed and left behind on  the rooftop in Atlanta however Merle amputated his hand and escaped before the search party arrived. In Season 3 Merle captured Glenn and Maggie and went to Woodbury where Merle interrogated Glenn about the location to where the group is staying. Merle went on and beat Glenn with Maggie in the next room, tied up and forced to listen as Merle beats Glenn. Merle also brought in a Walker in to try to kill Glenn however Glenn killed the Walker shortly after. Not long after Rick, Daryl, Oscar, and Michonne saved Glenn and Maggie although Maggie revealed the location of The Prison. When Rick and Maggie returned and rescued Daryl and Merle Dixon, Glenn tried to kill Merle showing a negative relationship. However, he was stopped by Daryl. While Rick is on the negotiations with The Governor, Merle and Glenn get in to a fist fight; this is triggered when Merle states he is going to leave and kill The Governor, but Glenn will not allow him. This displays their relationship becoming more and more negative. He also tells Daryl that he could have even forgive Merle for what he did to him, if he didn't take Maggie to The Governor, who humiliated her.

Lori Grimes
"They were family."

- Glenn to Oscar and Axel, regarding the group's casualties, Lori included.

Glenn and Lori didn't interact very much until Season 2. Lori wanted Glenn to run into town to get a pregnancy test because of her suspicions. Later on Glenn told Dale about Lori being pregnant. Lori was okay with Glenn telling Dale because she felt that she should not have put Glenn on the spot and that they were friends. After Lori's death in Season 3, Glenn cared for Lori so much that he and Maggie would care for her baby, Judith.

T-Dog
"...Saved my ass on so many occasions. He was a hero."

- Glenn to Oscar and Axel, while burying T-Dog.

Glenn and T-Dog were really close and often worked together. When the zombie apocalypse began, T-Dog gave Glenn and others a ride in his church van and Glenn claims T-Dog saved his life many times. Glenn cared for T-Dog so much that he believed that Rick and the group should have killed the prisoners at first sight.

The Governor
"Get out of HERE!!!"

- Glenn to The Governor during the attack of the prison

Philip is one of the few people in the series that Glenn has an extreme dislike for, mainly for what he did to Maggie during their kidnapping. Philip had Merle interrogate Glenn while he bluffed raping Maggie in an effort to divulge the location of the Prison. After Rick and Maggie attack Woodbury, Glenn is angered at Rick for not killing The Governor during the attack and instead focusing his efforts on rescuing Daryl, who had abandoned their group to go off with Merle.

Appearances
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Season 3

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Trivia

 * In the episode "Nebraska", Glenn reveals that he had or has multiple sisters, although it is unknown what became of them.
 * Glenn reveals to Hershel the origins of his family, which is from Michigan, but originally came from Korea, similarly to Glenn's actor, Steven Yeun.
 * As of Season 3, Glenn in the TV Series has been portrayed as a tougher character than his Comic Series counterpart. For instance, Glenn in the Comic Series shows signs of obvious fear when being interrogated by The Governor's henchmen, while his TV Series counterpart is able to withstand beatings and come up with an idea as to how to escape Woodbury.
 * In the episode "Pretty Much Dead Already", Glenn reveals that he has played Portal.
 * Glenn is one of the only characters to have appeared in almost every form of Walking Dead media, having appeared in the Comic Series, TV Series, Video Game, Assault Game, and Social Game.
 * It has been confirmed by Glen Mazzara that Glenn's last name is Rhee, but it has never been mentioned on-screen in the TV Series. Glenn's last name is also listed on his page on AMC's official "The Walking Dead" site..
 * Glenn has been kidnapped twice, once by the Atlanta Nursing Home workers and secondly by Merle.
 * Merle kidnapping Glenn also marked the first time he did not return from a supply run.
 * Glenn has twice used body parts of walkers to aid his survival; once in "Guts," where he and Rick Grimes used walker blood as camouflage and on another occasion in "Made to Suffer," where he used a dead walker to obtain bones for him and Maggie Greene to use as weapons against Merle and Warren.
 * On Talking Dead, Kevin Smith joked that the show was becoming "The Walking Glenn," nodding towards the drastic change in his role between Season 1 and Season 3, becoming more hardened, as well as being a leader.
 * Glenn and Maggie will be the first to be married post-apocalypse (if both survive long enough to have it.)
 * In Season 1 and 2, Glenn wears his trademark cap almost everytime. In season 3 he wears it once.
 * Glenn is one of the last remaining original main cast members from Season 1 along with Rick and Carl.
 * Glenn actually has knowledge of medicine due to the fact that he knows how to coattarize a wound to stop it from bleeding. He volunteers to use this on Hershel in the episode, "Sick", to stop Hershel from bleeding out.