Eli Pepperjack is a boy who often get bullied by Steve Palchuk. He is aware of the existence of troll after he witnessed Blinky, AAARRRGGHH!!! and Bular run by his window but no one believes him when he tries to tell them. He also saw a smashed goblin on the street. He takes a picture of it, but Toby deletes it and nobody believes him. Throughout the series, he tries to get more proof of the Trolls' existence, but usually ends up losing all his evidence or gets beat up by Steve or any of the other jocks. He really wants to be Jim's best friend, but often fails, due to Jim's secret double life and the fact that no one reaches out to him.
Eli wears a green t-shirt, light brown cargo shorts, white socks, big blue glasses and black trainers. Once, during the Romeo and Juliet play, Eli sported a beret in his role as narrator.