Alex Gregor, aka Gregor the Great

Lon Chaney Jr.

Acting

Maura Daniel

Evelyn Ankers

Acting

Nina Coudreau

Elena Verdugo

Acting

Rudi

Martin Kosleck

Acting

Mme. Monet

Tala Birell

Acting

George Keene

Milburn Stone

Acting

Inspector Brant

Douglass Dumbrille

Acting

The Drunk in the Audience

Arthur Hohl

Acting

Radio Announcer (uncredited)

Dennis Moore

Acting

Doctor in audience (uncredited)

Leyland Hodgson

Acting