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