John De Bello Charles White Director, Actor John Astin Prof. Gangreen Actor Anthony Starke Chad Finletter Actor George Clooney Matt Stevens Actor Michael Villani Bob Downs Actor Harvey Weber Sid Actor J. Stephen Peace Wilbur Finletter Actor, Producer Karen M. Waldron Tara Boumdeay Actor Steve Lundquist Igor Actor D.J. Sullivan Mrs. Williams Actor Costa Dillon Production Design Stephen F. Andrich Film Editing Lowell D. Blank Producer Stephen Welch Cinematographer Victor Lou Cinematographer Neal Fox Original Music Rick Patterson Original Music Roger C. Ambrose Art Director Melinda Ritz Set Decoration Samuel Warren Casting