Mantan Moreland
Birmingham Brown, Chauffeur
I. Stanford Jolley
Rolf Brot, alias Ralph Brett
Virginia Brissac
Mrs. Marsh
Victoria Faust
Hulda Swenson / Janet Carter
Leonard Mudie
Horace Karloss
Reid Kilpatrick
Mr. Chester, program announcer
Crane Whitley
Henchman Cooper
Kernan Cripps
Detective (uncredited)
Charles Jordan
Nelson (uncredited)
Kenner G. Kemp
Police Radio Expert (uncredited)
Milton Kibbee
Herbert Sinclair (uncredited)
Frank Mayo
Det. Hodge (uncredited)
Leonard Mudie
Horace Karlos (uncredited)
Tom Quinn
Chemist (uncredited)
Charles Sherlock
Sgt. McGraw (uncredited)
Charles Wagenheim
Rausch (uncredited)
