Jeffrey Jay Cohen (born June 22, 1965) is an American actor who has appeared in film and on television.

It was not until 1985, he would get his big role in the film Back to the Future as Skinhead, a member of Biff Tannen's gang.

Writer and producer Bob Gale noted that, had the much shorter Michael J.

Fox been cast as Marty from the beginning as they had hoped, Cohen probably would have played Biff.

Cohen's other big role was in the 1987 action film The Principal as White Zac.