- "It is what it is. Negan was hoping to have your ass chained to the Sanctuary fence. You, the Widow, Rick. But your head on a pike will do just fine. Maybe break it up a little, avoid the obvious symmetry."
- —Gunther's last words to Ezekiel.[src]
Nothing is known about Gunther's life prior to or as the outbreak began. He may lived somewhere in or near Washington D.C.
Gunther presumably followed Alvaro, who was also attempting to save King Ezekiel from walkers. Alvaro's back was turned and Gunther took this as an opportunity to kill Alvaro with a fatal shot through the chest, leaving Ezekiel completely vulnerable due to his leg injury caused by a .50 Calibre bullet. Gunther then takes Ezekiel, and confiscates his sword, leaving him with only his cane so that they could walk a bit faster. Gunther manages to survive multiple attempts from walkers nearly reaching him and Ezekiel, taunting the King in the process on how he would be nothing without Shiva and how "his people" are all dead.
Coming across a gate that happens to be locked, Gunther knew that the only way to get through would be to go over the barb wired fence. He grabbed Ezekiel's coat and threw it over the barbed wire, knocking Ezekiel to the ground, saying that he wanted to bring him back alive, but clearly can't due to walkers closing in on them and would prefer to mount his head atop a pike. Gunther unsheathes Ezekiel's sword and aims it at the Kings head.
At that moment, Jerry runs up from behind with his battle axe and slices his body in half, killing Gunther instantly and saving Ezekiel's life, as well as avenging Alvaro.
When Gunther is about to stab Ezekiel, Jerry comes up and chops his body in half, killing him.
This list shows the victims Gunther has killed:
- "Some Guy"
- Gunther's name was revealed during a Talking Dead segment.
- Actor Whitmer Thomas stated that he portrayed Gunther in a way to get TV viewers to hate him by the time he was killed off.