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