The Detonator

The Detonator, real name unknown, is a video game expert and walkthrough gamer. He also worked at his uncle's tile store.

History
When Bart was getting into e-sports, playing Conflict of Enemies, Homer hired The Detonator to tutor Bart and his team. He gave advice and tactics to the team and commentated everything he did, including going for a pee break. When he got back to his computer, he realized that he had mistimed his break and his character died as a result. The Detonator then announced to the kids that he was quitting as he had lost his gaming edge. The Detonator then burned his hoodie and beard and went to work for his uncle at a tile store.

It seems that the Detonator picked up gaming again as he was seen at a social media influencer gathering in Springfield where Warburton Parker introduced him as the Internet's leading walkthrough gamer. He asked Homer what his side quest was before he walked off to get some chili.