Nothing is known about Bertha's life prior to or as the outbreak began.
Bertha appears on the beach where Michonne, Samantha, and Pete (Determinant) arrive after escaping Monroe. As the three or two make their way through the herd, the Monroe Colonists appear and shoot at them and kill the zombies.
- Killed By
- Unknown (Alive, Off-Screen)
- Monroe Colonists (Zombified, Off-Screen)
This list shows the victims Bertha has killed:
- Possibly a few unnamed people (Infected)
- "Give No Shelter" (Zombified)
- Bertha's name is revealed in the Definitive Series in the 3D Viewer, where she named "Aunt Bertha".