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