- "She's not breathing!"
- —Johnny to Carl.[src]
Almost nothing is known about Johnny's life before or as the outbreak began apart from that he had a mother. He also had a sister, aunt, uncle, great-aunt, and a father who he lost to the undead. It is possible he lived near or at the Hilltop Colony before the outbreak.
Johnny is mentioned by Brianna, while chatting with Maggie Greene.
Johnny is seen playing with Sophia during the events of this volume.
As the Hilltop mansion burns, everyone inside evacuates the house. Carl helps Johnny carry an unconscious Brianna to safety. Part of the house explodes behind them and Carl is knocked to the ground. Johnny continues to get his mother to safety as Carl falls unconscious.
This list shows the victims Johnny has killed:
- Possibly numerous counts of zombies.
- Issue 95 (No Lines)
- Issue 111 (No Lines)
- Issue 154 (No Lines)