Marvin is a character in Banana Fish who works for Dino Golzine. He later committed suicide in a house while being followed by Ash Lynx for killing Skip.
Marvin has brown hair with black sunglasses and wears a tan shirt underneath his brown suit with a black tie.
Marvin worked for him as part of Dino's criminal empire.
Marvin has a homosexual-liking towards Ash.