Actor David Carradine must have had a good working relationship with movie producer Roger Corman, because Carradine appeared in close to twenty movies produced by Corman. It would also explain why in Crime Zone, Carradine not only acted but also sat in the associate producer’s chair. The fact that Carradine had two jobs to do on this movie may explain why he appears onscreen in just a few brief scenes, which is one of several problems the finished product has.