J.J. Cohen made a memorable mark in pop culture as 3-D, one of Biff Tannen’s gang members in Robert Zemeckis’s Back to the Future trilogy. Though his screen time was brief, his presence added texture to the iconic Hill Valley high school dynamic, standing out among the colorful supporting cast. Cohen’s knack for playing those tough, street-smart types carries through to other cult favorites like Street Trash, where his gritty edge complements the film’s offbeat tone. While not a leading man, his recognizable characters have cemented his place in 1980s and 90s genre cinema, appealing to fans who appreciate those vivid, memorable background roles.