Lon Chaney Jr.
Prof. Norman Reed
Evelyn Ankers
Illona Carr
Anne Gwynne
Paula Clayton Reed
Phil Brown
David Jennings
Chuck Hamilton
The Carpenter (uncredited)
Milburn Stone
Elizabeth Russell
Evelyn Sawtelle
Elisabeth Risdon
Dean Grace Gunnison
Harry Hayden
Dean Septimus Carr
Ralph Morgan
Prof. Millard Sawtelle
William Hudson
Second Gossiping Male Student (uncredited)
David Hoffman
The Spirit of the Inner Sanctum (uncredited)
Lois Collier
Margaret Mercer
Kay Harding
Student
Larry Steers
Party Guest (uncredited)
Gertrude Astor
Party Guest (uncredited)