John Jameson is the son of J. Jonah Jameson and Mary Jane Watson's fiance. He is an astronaut, noted for apparently being the first man to play football on the moon. In the film, he rather quickly develops a relationship with Mary Jane Watson when a strain is caused on her friendship with Peter Parker, and she immediately accepts his marriage proposal. However, in the end, Mary Jane realizes that she does not truly love John and leaves him at the altar to go back to Peter.