Doug is a limited-time premium character that was released on April 7, 2017, as a Gil deal during the Secret Agents 2017 Event. He is unlocked together with Benjamin and Gary from the University Nerds Bundle.
Doug is one of three nerds that Homer met at Springfield University. He is heavy-set, always wears a cardigan, and wears glasses with thick round lenses. It is implied that he is Jewish in "Mathlete's Feat" where he wears a Hebrew chai necklace.