Lon Chaney, Jr. (Alex Gregor)
Evelyn Ankers (Maura Daniel)
Milburn Stone (George Keene)
Tala Birell (Valerie Monet)
Douglas Dumbrille (Inspector Brant)
Martin Kosleck (Rudy Poldan)
Elena Verdugo (Nina Coudreau)
Arthur Hohl (Skeptic)