Non is a fictional supervillain appearing in American comic books published by DC Comics. He first appeared in the 1978 film Superman: The Movie portrayed by actor and former boxer Jack O'Halloran. The character made his comic book debut in Action Comics #845. An accomplice of General Zod and an adversary of the superhero Superman, he is typically depicted as having been imprisoned in the Phantom Zone, along with Zod and Ursa, among whom he is portrayed as the strong and silent muscle.

Superman is a 1978 superhero film based on the DC Comics superhero Superman, played by Christopher Reeve. It is the first of four installments in the Superman film series starring Reeve as Superman. The film was directed by Richard Donner based on a screenplay by Mario Puzo, David Newman, Leslie Newman, and Robert Benton. In addition to Reeve, the film features an ensemble cast including Marlon Brando, Gene Hackman, Jeff East, Margot Kidder, Glenn Ford, Phyllis Thaxter, Jackie Cooper, Trevor Howard, Marc McClure, Terence Stamp, Valerie Perrine, Ned Beatty, Jack O'Halloran, Maria Schell, and Sarah Douglas. It depicts the origin of Superman, including his infancy as Kal-El of Krypton, son of Jor-El (Brando), and his youthful years in the rural town of Smallville. Disguised as reporter Clark Kent, he adopts a mild-mannered disposition in Metropolis and develops a romance with Lois Lane (Kidder) while battling the villainous Lex Luthor (Hackman).