Lon Chaney Jr.

Prof. Norman Reed

Anne Gwynne

Paula Clayton Reed

Evelyn Ankers

Illona Carr

Ralph Morgan

Prof. Millard Sawtelle

Elisabeth Risdon

Dean Grace Gunnison

Lois Collier

Margaret Mercer

Harry Hayden

Dean Septimus Carr

Elizabeth Russell

Evelyn Sawtelle

Phil Brown

David Jennings

Kay Harding

Student

Gertrude Astor

Party Guest (uncredited)

Edmund Mortimer

Party Guest (uncredited)

Larry Steers

Party Guest (uncredited)

Chuck Hamilton

The Carpenter (uncredited)

David Hoffman

The Spirit of the Inner Sanctum (uncredited)

William Hudson

Second Gossiping Male Student (uncredited)

Milburn Stone

Calling Dr. Death

Weird Woman

Dead Man's Eyes

The Frozen Ghost

Strange Confession

Pillow of Death