He also appeared in episodes of the TV series Gunsmoke, Kung Fu, Medical Center, Love, American Style, Police Story, The Incredible Hulk, Beyond Belief: Fact or Fiction, and more. Cruz sang for the punk rock bands Dead Kennedys, Dr. Know, and Flipper. He also starred in the TV movies But I Don’t Want to Get Married!, The Going Up of David Lev, Jeremiah of Jacob’s Neck, Eddie’s Father, and Life Interrupted.