Evelyn Ankers

Character: Beth Mason

J. Carrol Naish

Character: Dr. Carl Fletcher

Samuel S. Hinds

Character: Coroner

Lois Collier

Character: Joan Fletcher

Milburn Stone

Character: Fred Mason

Douglass Dumbrille

Character: District Attorney

Acquanetta

Character: Paula Dupree, the Ape Woman

Nana Bryant

Character: Miss Gray

Pierre Watkin

Character: Dr. Meredith

Christian Rub

Character: George

Richard Davis

Character: Bob Whitney

Edward M. Hyans Jr.

Character: Willie

Alec Craig

Character: Caretaker

Tom Keene

Character: Joe, the Fingerprint Man

Vince Barnett

Character: Curley (archive footage / uncredited)

Clyde Beatty

Character: Fred Mason (in long shots) (archive footage / uncredited)

Wilson Benge

Character: Court Stenographer (uncredited)

John Carradine

Character: Dr. Sigmund Walters (archive footage / uncredited)

Diane Carroll

Character: Inquest Juror (uncredited)

Edward Clark

Character: Inquest Juror (uncredited)

Heinie Conklin

Character: Inquest Juror (uncredited)

Ray Corrigan

Character: Cheela (archive footage / uncredited)

Fern Emmett

Character: Beth's Neighbor (archive footage / uncredited)

Nolan Leary

Character: Inquest Juror (uncredited)

Charles Marsh

Character: Inquest Juror (uncredited)

Beatrice Roberts

Character: Inquest Juror (uncredited)

Ray Walker

Character: Ringmaster (archive footage / uncredited)