William Girdler Director Christopher George Kelly Actor Andrew Prine Don Actor Richard Jaeckel Scott Actor Joan McCall Allison Actor Joe Dorsey Kittridge Actor Mary Ann Hearn Margaret Actor Charles Kissinger Dr. Hallitt Actor Kermit Echols Corwin Actor Harvey Flaxman Screenwriter, Producer David Sheldon Screenwriter, Producer Lloyd N. Adams Jr. Executive Producer Edward L. Montoro Executive Producer William L. Asman Cinematographer Bub Asman Film Editing Robert O. Ragland Original Music