Jeffrey Hunter
— Jim Grayam
Anne Francis
— Lorrie Benson
Dana Andrews
— Cort Benson
Viveca Lindfors
— Dr. Elizabeth Larstadt
Stacy Harris
— Josh Reynolds
Kathie Browne
— Angie DeWitt
Phillip Pine
— Dr. Ames
Michael Pate
— Dr. Mills
Robert McQueeney
— Sgt. Dawes
Strother Martin
— Mr. Clyde
Joan Swift
— Clara
George Pelling
— Butler
Victoria Paige Meyerink
— Julie Benson
Stephen Roberts
— Judge
Pat Cardi
— Bobby
Leon Alton
— Spectator (uncredited)
Tom Anfinsen
— Party Guest (uncredited)
David Armstrong
— Party Guest (uncredited)
Frank Baker
— Executive (uncredited)
Harry Bartell
— Detective (uncredited)
Suzanne Benoit
— Nurse (uncredited)
Steve Carruthers
— Executive (uncredited)
James J. Casino
— Party Guest (uncredited)
Donald Chaffin
— Orderly (uncredited)
William Conrad
— Mental Patient (uncredited)
Roberto Contreras
— Asylum Inmate (uncredited)
Isabel Cooley
— Nurse (uncredited)
George DeNormand
— Attorney (uncredited)
Barbara Dodd
— Party Guest (uncredited)
William Duffy
— Orderly (uncredited)