Potter is a humble and grateful man, unlike many who live in the Sanctuary, most likely due to his low status in it's hierarchy. He seemed to despise Negan and his lieutenants, due to their poor treatment of the worker class. Following the defeat of Negan, he was grateful for the new regime brought by Rick Grimes, and held Rick in high regard.
Nothing is known about Potter's life prior to or as the outbreak began.
At some point in the apocalypse, Potter somehow came into contact with a group named "The Saviors" which he subsequently joined as a worker.
Potter, along with José, Brooke, and many other workers confront the Savior lieutenants, demanding power, water, and other amenities. He demands that the power be restored as it is too hot to stay on the ground floor. When Negan starts whistling and makes his way toward the crowd, Potter and the others quickly take a knee.
Potter is among the workers from the Sanctuary sent to Eugene's outpost, a machine factory designed to produce bullets for Negan's army. When Eugene informs Frankie of what to inform Tanya regarding breakfast for himself and the workers, Potter openly shares his opinion with Eugene on what food they should get cooked by Tanya.
Potter remains at the bullet factory, producing bullets with the other workers. He listens on to Eugene's speech about meeting the minimum quota for Simon. Later, he is shocked to see Eugene return after his brief absence, covered in soot. He and the other Saviors are ordered to complete the entire bullet order in anticipation of Negan's final assault on the survivors.
At the Sanctuary, as Rick and the group arrive to deliver supplies, Potter tells the others Rick is the man who ended the war and tells him he hopes Negan is suffering. Later, Rick promises to the Saviors that he’ll continue to support them so they can get back on their feet. Potter thanks him as everyone applauds and treat Rick like a celebrity.
Following the six year time jump, the Sanctuary fell apart as a community, with most of its residents integrating into Alexandria, Hilltop, and the Kingdom, though some chose not to join any of the communities. Since then, Potter has not been seen among the communities after the Sanctuary fell, leaving him with an unknown fate.
Potter held Rick in high regard. He showed much gratitude when Rick promised more food and supplies for the residents of the Sanctuary.
Potter seemed to have a big dislike for Negan and most of the militant saviors, since he and the other workers were treated poorly. He was happy about Negan being removed from power by Rick Grimes and his group, and even 18 months later questioned Rick if Negan was suffering in his prison cell.
This list shows the victims Potter has killed:
- Cam (Possibly; Indirectly Caused, Accidental)
- Wade (Possibly; Indirectly Caused, Accidental)
- Huck (Possibly; Indirectly Caused, Accidental)
- Several dozen unnamed Saviors (Indirectly Caused, Accidental)
- Possibly numerous counts of zombies