John Alexander Fraser was a Scottish actor and author. He is best known for his performances in the films The Dam Busters (1955), The Good Companions (1957), The Trials of Oscar Wilde (1960), El Cid (1961), Repulsion (1965) and Isadora (1968).

El Cid is a 1961 epic historical drama film directed by Anthony Mann and produced by Samuel Bronston. The film is loosely based on the life of the 11th-century Castilian warlord Rodrigo Díaz de Vivar, called "El Cid". The film stars Charlton Heston in the title role and Sophia Loren as Doña Jimena, spelled "Chimene" in the script and pronounced that way (shim-ain) in the film. The screenplay is credited to Fredric M. Frank, Philip Yordan and Ben Barzman, with uncredited contributions by Bernard Gordon.