Evelyn Ankers
Beth Mason
Acting
J. Carrol Naish
Dr. Carl Fletcher
Acting
Samuel S. Hinds
Coroner
Acting
Lois Collier
Joan Fletcher
Acting
Milburn Stone
Fred Mason
Acting
Douglass Dumbrille
District Attorney
Acting
Acquanetta
Paula Dupree, the Ape Woman
Acting
Nana Bryant
Miss Gray
Acting
Pierre Watkin
Dr. Meredith
Acting
Christian Rub
George
Acting
Richard Davis
Bob Whitney
Acting
Edward M. Hyans Jr.
Willie
Acting
Alec Craig
Caretaker
Acting
Tom Keene
Joe, the Fingerprint Man
Acting
Vince Barnett
Curley (archive footage / uncredited)
Acting
Clyde Beatty
Fred Mason (in long shots) (archive footage / uncredited)
Acting
Wilson Benge
Court Stenographer (uncredited)
Acting
John Carradine
Dr. Sigmund Walters (archive footage / uncredited)
Acting
Diane Carroll
Inquest Juror (uncredited)
Acting
Edward Clark
Inquest Juror (uncredited)
Acting
Heinie Conklin
Inquest Juror (uncredited)
Acting
Ray Corrigan
Cheela (archive footage / uncredited)
Acting
Fern Emmett
Beth's Neighbor (archive footage / uncredited)
Acting
Nolan Leary
Inquest Juror (uncredited)
Acting
Charles Marsh
Inquest Juror (uncredited)
Acting
Beatrice Roberts
Inquest Juror (uncredited)
Acting
Ray Walker
Ringmaster (archive footage / uncredited)
Acting