Martin "Marty" McFly is a fictional character and the main protagonist in the Back to the Future film trilogy, and is portrayed by actor Michael J. Fox. Marty was also the main protagonist in the animated series where he was voiced by David Kaufman.
In "The Courtship of Stewie's Father", Dr. Emmett Brown tells Marty and his girlfriend, Jennifer Parker, that their daughter will marry a black man in the future, in a parody of the end of Part I and the beginning of Part II. With Doc's tone, McFly realizes it would be better if he did not hang out with Doc anymore. Stewie Griffin called it a miscalculation when he set the scene.
In "Meet the Quagmires", an episode which heavily parodies the franchise, both Peter and Brian Griffin take roles that McFly held in Part I. Peter alters the timeline and has to get everything back to normal, while Brian performs a song at the dance which at the time doesn't exist, heavily influencing the actual original artist.
He is also mentioned in the DVD cut of "Three Kings" in the Stand By Me segment.
In "Finders Keepers", Lois accuses Peter of being played for a fool like Marty's father, George McFly. A cutaway shows that George is very much aware that Marty was the one that appeared in their past as he sets the carpet on fire as he mentions in the film. George takes off his belt as he pursues Marty to get more answers from him.