Nothing is known about Keno's life prior to or as the outbreak began.
Keno is one of the Saviors taunting Rick's group as they attempt to travel to the Hilltop. Once Rick's group is finally captured in the woods, Keno is among the Saviors to surround the survivors.
Keno is among the Saviors to raid Alexandria for supplies, weapons, and furniture.
Keno is on patrol at the Sanctuary when he finds Eugene outside with Frankie, Tanya, and Amber. Tanya dismisses Keno, saying that everything is fine as Eugene prepares to demonstrate some science tricks.
Keno is among the Saviors at the Hilltop as they collect an early offering from its residents. He is later seen with his fellow Saviors having just arrived at the Sanctuary as Negan speaks with Harlan and Eugene.
This list shows the victims Keno has killed:
- Possibly numerous counts of zombies and unnamed people
- "Last Day on Earth" (No Lines)
- "The Day Will Come When You Won't Be" (No Lines)
- "Service" (No Lines)
- "Hostiles and Calamities" (No Lines)
- "The Other Side" (No Lines)