Dr. Doomis appears first during season 3 in the episode, "Smokin With Cigarettes". The psychologist of Lamilton Taeshawn, Riley's sociopathic, destructive friend, Doomis first took notice of Lamilton's behavior when Lamilton was still in kindergarten and convinced his grandmother to bring him in for questioning. He greatly believes that Lamilton is beyond a bad egg and is something demonic, due to his personality and anger. Unable to lock Lamilton away as he wishes, he instead secretly follows him in order to collect enough evidence to put him in jail. His obsession with Lamilton drives Lamilton's grandmother to file a restraining order against the doctor.