J.J. Cohen appeared in all three parts of the Back to the Future trilogy. As with several other actors in the trilogy, Cohen played more than one role. Unlike the other actors, however, he portrayed two unrelated characters. After being seen as 1955 high-school punk Skinhead in the first film, and as a member of Biff's entourage in 1955 and 1985A in the second movie, Cohen appeared at the close of the third film as "Needles' Gang Member #2" He is standing in the back of the pickup truck, and wearing a gold and black school jacket. Unlike Skinhead, Needles's friend wears his hair long, but his smirk is unmistakable.