local comic shop, Oz Comix. Oz is a friend of the boys, who consider him "the most knowledgeable human being ever," though he is a nerdish know-it-all who lives with his elderly mother. Voiced by Josh Duhamel. Dollar-nator is a sophisticated computerized intelligence system built by Fanboy in the future, and sent back in time by Fanboy to bail Fanboy and Chum Chum out of a jam in 'Dollar Day'. He also has many surprise skills and talents and is a parody on The Terminator. Voiced by Jeff Bennett. Janitor Russ Poopatine is a janitor at Fanboy and Chum Chum's school. He is a parody of Emperor Palpatine from Star Wars. He is a pale, skinny, gnarled old man who wears a dark hooded shirt. Poopatine rides around in a sentient cart named Brenda. He can understand all of the robotic noises Brenda makes, and often talks to her. Poopatine has a strong hatred of gum and saltwater taffy. Voiced by Steve Tompkins. Man-Arctica is an ice-based superhero who scours the cosmos looking for scofflaws. Man-Arctica balances a mild disdain for humanity against his duty to save them from harm. He often refers to children as "earth larvae". Voiced by Jeff Bennett. Minor Agent Johnson is the do-it-all authority figure in Galaxy Hills. Voiced by Jeff Bennett. Fedora Man is one of the delivery people in Galaxy Hills. Voiced by Jeff Bennett. Secret Shopper first appeared to evaluate Frosty Mart product quality and customer service in "Secret Shopper". Voiced by Jeff Bennett. Fankylechum is a nerdy, good-spirited classmate of the boys. Voiced by Jamie Kennedy. Dirty Bird is a seagull who makes cameos throughout the show. Chris Chuggy is a classmate of Fanboy and Chum Chum's who communicates only by saying "Wah". Voiced by Eric Robles. Scrivener Elf is an elf Kyle creates in "The Janitor Strikes Back" to do his homework and other tasks, but he appears other times in the series as well. Voiced by Jeff Bennett. Lupe is a kind-spirited girl in Fanboy and Chum Chum's class. Lupe appears to be Yo's friend, and the two are often seen together. Voiced by Candi Milo. Necronomicon is a talking book of spells who is a companion to Kyle, and nags him about the moral implications of his choices. Voiced by Jeff Bennett. Sigmund The Sorcerer is Kyle's more successful and skillful German wizard rival from Kyle's former school