Mike was one of Gordon's students. In a 1991 episode, when Telly Monster follows Gordon to school, he watches Gordon teaching a high school science class about volcanos. Mike seems eternally hungry -- Gordon chides him for eating in class, telling him to save his sandwich for lunch; Mike replies that he brought another sandwich for lunch. Later, he says that the volcano film made him hungry, because the fire reminded him of a barbecue.
Mike also appeared in one Sesame Street skit at a carnival working at a game stand where Maria and a boy named Travis were his two customers.