Who is Marvin Berry?
Marvin Berry is a fictional character from the 1985 movie Back to the Future. He is the cousin of Chuck Berry, and is portrayed by actor Harry Waters Jr. in the film.
Marvin Berry is a musician who plays guitar at his family’s club, The Enchantment Under the Sea Dance. He is first seen when Marty McFly (Michael J. Fox) arrives at the dance and meets him. Marvin introduces himself as Chuck Berry’s cousin, and tells Marty that he has been playing music since he was a kid.
Role in Back to the Future
Marvin plays an important role in Back to the Future when he hears Marty play “Johnny B. Goode” on his guitar. Impressed by Marty’s performance, Marvin calls Chuck Berry and tells him about it. This leads to Chuck coming to the dance and performing with Marty, which helps Marty get back to 1985.