Biography

J.J. Cohen was born on June 22, 1965. He is an actor and assistant director, known for Back to the Future (1985), Back to the Future Part II (1989) and Almost Famous (2000).

Originally tested for the role of Biff Tannen in Back to the Future (1985), but was deemed not big enough to have an intimidating presence over the 6' 0½" Eric Stoltz. Instead he played one of Biff's gang members. Stoltz' role was later recast with Michael J. Fox who is only around 5'4'' tall.

Played a gang member in all three Back to the Future films. He appeared as "Skinhead," a member of Biff's gang, in the first two films. In the third film, he appeared briefly as a member of Needles' gang.