Psycho Sisters

Faith Domergue as Millie Hartman Charles Robinson as Jerry (as Charles Knox Robinson) John Ashton as Brock Biff Yeager as Bill Steve Mitchell as Lt. Haze Kathleen Freeman as Hilda Sydney Chaplin as George Ben Frank as Woody John Howard as Dr. Thomas Susan Strasberg as Brenda

William Tuttle Makeup Effects Dean Cundey Director of Photography Reginald Le Borg Director