Gary Grimes is known for his roles in Summer of '42, Cahill U.S. Marshal, and La Classe américaine. He has been suggested by fans for 1 role on myCast, including Marty McFly (1975) in Actors who could play Marty McFly in different years. Similar actors include Mark Hamill, Ron Howard, and Barry Williams. Gary Grimes was suggested to play Marty McFly (1975) in Actors who could play Marty McFly in different years by daviddyster. Other actors sugggested to play this role include Mark Hamill, Ron Howard, and Barry Williams. Actors who could play Marty McFly in different years has 8 roles, including Marty McFly (2025), Marty McFly (1985), and Marty McFly (2015).