Psycho Sisters

Susan Strasberg

Brenda

Faith Domergue

Millie Hartman

Charles Robinson

Jerry (as Charles Knox Robinson)

Kathleen Freeman

Hilda

Sydney Chaplin

George

John Ashton

Brock

George E. Carey

Ben Frank

Woody

Biff Yeager

Bill

John Howard

Dr. Thomas

Steve Mitchell

Lt. Haze

Dean Cundey

Director of Photography

William Tuttle

Makeup Effects

Herbert L. Strock

Editor

Reginald Le Borg

Director

Tony Crechales

Screenplay

Robert J. Stone

Producer