|This article is about the TV Series character. You may be looking for his Comic Series or Road to Survival counterparts, the TV Series prisoner, or the Companion Series character.|
Nothing is known about Oscar's life before or as the outbreak began. He may lived near or in Washington D.C.
Oscar is out on patrol with three other residents. They briefly stop and Oscar replies to Maggie's comment about Gregory's first time dealing with zombies, stating that Gregory has told them he dealt with zombies before. Oscar and his group then proceed returning towards the Hilltop gates.
Oscar is among the Militia to listen to the leaders' speeches before they launch their assault on the Sanctuary. After successfully ambushing the Saviors' headquarters, he and the others leave in their vehicles so the incoming horde may swarm the factory.
Oscar is among the Hilltoppers to sneak into the satellite outpost that has been re-occupied by the Saviors in order to take it over. He gets into position as the Hilltoppers prepare to assault the unsuspecting Saviors. Inside, he and Dianne are with a group of Hilltoppers and Kingdommers pinned in a hallway as Saviors shoot from a distance. Oscar comments that they've lost touch with one of the groups. He is unable to answer Tara when she asks about Morgan. After a lengthily gunfight, Oscar and his allies are able to gain the upper hand as the Saviors call a retreat. Before Alden, Jared, and the other Saviors can flee, they are captured by Oscar and the rest of the militia.
Oscar is among the Militia to bring the Saviors back to the Hilltop. He and the rest of the Militia help protect the Saviors from on coming zombies.
Oscar is seen walking around with Kevin as they help with improving the town's defenses. He witnesses the arrival of the Alexandrians and the revelation that Carl has died. Later, Oscar, along with Jerry, Scott, and Dianne, accompanies Maggie to the makeshift prison and listens on as Maggie declares the Saviors will be let out for a few minutes a day in pairs and under close watch of the guards.
Oscar is seen helping Dianne bring the Savior prisoners out onto the balcony as Maggie addresses Simon on the radio. After the Saviors open fire, he helps usher everyone inside the Barrington House. He survives the attack on the Hilltop and the subsequent outbreak that leaves several more dead. He is part of a group consisting of Maggie, Jesus, Dianne, Eduardo, and Kal doing a sweep of the Hilltop grounds when they find Alden and Siddiq. Alden alerts the group that several Saviors defected and are trying to close the gates to protect the community from incoming zombies. Oscar and the others then go to assist the Saviors in barricading the gates.
Oscar accompanies Rick and the rest of the militia to fight the Saviors in the final battle. After most of the Saviors are wiped out due to Eugene’s faulty bullets, Oscar and the others fight the surviving Saviors until they surrender. He watches on as Negan is defeated and captured while Rick addresses the crowd, declaring peace among all communities. Afterwards, Oscar returns home to the Hilltop.
In the Hilltop's fields, Oscar informs Tara about the farming operations and the crops.
This list shows the victims Oscar has killed:
- "Mercy" (No Lines)
- "The Damned"
- "Monsters" (No Lines)
- "Dead or Alive Or" (No Lines)
- "Do Not Send Us Astray" (No Lines)
- "Wrath" (No Lines)
- Oscar is credited as Hilltopper in "Something They Need".