Annie is a kind and helpful individual and seems to be a leading figure for her group. When Toby orders for his troopers to kill anyone who doesn't talk, she inspires her group to stick together. She and Negan appear to have a loving relationship and trust each other very much. She is well-aware of the horrible things Negan has done in the past, but reasons that everyone has done horrible things, including her.
Nothing is known about Annie's life prior to or as the outbreak began.
In a flashback to twelve hours ago, Jesse flees the complex to unhitch his horse. Negan emerges from the woods with Annie and realizes Aaron and Gabriel are at the complex. Negan gives Jesse a map to Hilltop and asks him to tell Maggie that Gabriel and Aaron are in trouble. Jesse gets on his horse. Annie and Negan sneak into the building and overhear Carlson talking to Aaron. When Carlson runs outside, Annie kills Gabriel's guard as Negan cuts Gabriel's bonds. They flee as Carlson finds the dead guard.
Annie, Negan and Gabriel hide in a room with others from the complex. Annie tells Gabriel she doesn't know anything about stolen weapons. Negan's group hears the screams of victims plummeting to their death. Carlson orders his troopers to kill anyone in the building who won't talk. Annie tells her group to stick together and reminds them that they know the building better than the troopers do.
While searching an apartment, Annie's group runs into Maggie. She holds Maggie at gunpoint, but Elijah and Lydia turn their weapons on Annie. Negan calms both parties down, as he tells Annie he knows Maggie. They're brought to a secret room where Gabriel and other residents are hiding. Maggie asks Annie if her people stole the Commonwealth guns and hijacked the convoy. Speaking for Riverbend, Annie tells them they didn't take the guns. Maggie's mission is to get the Riverbenders out of the building, but Annie says they can't leave until the rest of her people are out of hiding. Annie proposes they split into teams and sweep each floor to rescue survivors. She leaves with Maggie, while Negan stays behind.
Negan reveals to Aaron's group that he's married to Annie. Gabriel insists they didn't know Carlson's ulterior motives when they came to the complex. Annie radios Negan and tells the group to mobilize. Negan sees something troubling outside the window. Annie and Maggie hide while Carlson's team continues to sweep the complex. Annie reveals that she's pregnant with Negan's baby. Negan radios Annie to tell her the troopers found Hershel, but he vows to protect Hershel. Maggie asks why Annie is with Negan despite knowing what he's done. Annie says they've all done things they're not proud of and can only try to be better now.
Carlson leads troopers through the building. Annie and Maggie radio Gabriel and Aaron with a plan. Maggie and Annie enter the roof, Aaron guns down Carlson, sending his body toppling off the roof, and he is devoured alive by walkers. Annie regroups with her people as Negan advises Hershel to help Maggie rebuild their community and then come find him in a few years to settle the score.
Maggie, Elijah, Marco, and Hershel meet Lydia at a hideout which many Riverbend residents are hiding in, including Annie and Negan. Maggie asks her and Negan to look after Hershel until the fight with the Commonwealth is over. After the fight is over, Annie and the other residents climb out of the bunker. After Hershel shoves Negan away, he runs over to Annie who puts her arm around him.
This list shows the victims Annie has killed:
- Sgt. Crowe (Alongside Maggie Rhee)
- At least 1 unnamed Commonwealth soldier (Alive)
- Numerous counts of zombies and unnamed people