Diễn viên
I. Stanford Jolley
Rolf Brot, alias Ralph Brett
Virginia Brissac
Mrs. Marsh
Jack Norton
Willie Rand
Ben Carter
Ben Carter
Charles Jordan
Nelson (uncredited)
Kenner G. Kemp
Police Radio Expert (uncredited)
Charles Sherlock
Sgt. McGraw (uncredited)
Benson Fong
Tommy Chan
Mantan Moreland
Birmingham Brown, Chauffeur
Emmett Vogan
Mr. Hamilton
Crane Whitley
Henchman Cooper
Frank Mayo
Det. Hodge (uncredited)
Charles Wagenheim
Rausch (uncredited)
Sidney Toler
Charlie Chan
Robert Homans
Capt. Flynn
Leonard Mudie
Horace Karloss, Horace Karlos (uncredited)
Reid Kilpatrick
Mr. Chester, program announcer
Kernan Cripps
Detective (uncredited)
Milton Kibbee
Herbert Sinclair (uncredited)
Janet Shaw
Gloria Bayne
Victoria Faust
Hulda Swenson / Janet Carter