On screen
Cast
16 credited performers
Beverly Garland
Joyce Webster, aka Jane Marvin
Bruce Bennett
Dr. Eric Lorimer
Lon Chaney Jr.
Manon
George Macready
Dr. Mark Sinclair
Frieda Inescort
Mrs. Lavinia Hawthorne
Richard Crane
Paul Webster
Douglas Kennedy
Dr. Wayne McGregor
Artwork unavailable
Bill Bradley
Patient 'Number Six' (uncredited)
Hal K. Dawson
Conductor
Dudley Dickerson
Porter
John Frederick
1st Male Nurse (uncredited)
Ruby Goodwin
Louann
Artwork unavailable
Ken Kane
Third Male Nurse (uncredited)
Boyd Stockman
Alligator-headed Paul
Artwork unavailable
Vince Townsend Jr.
Toby
Artwork unavailable
Lee Warren
2nd Male Nurse (uncredited)