Charlie Chan

Sidney Toler

Acting

Tommy Chan

Benson Fong

Acting

Birmingham Brown, Chauffeur

Mantan Moreland

Acting

Capt. Flynn

Robert Homans

Acting

Rolf Brot, alias Ralph Brett

I. Stanford Jolley

Acting

Mrs. Marsh

Virginia Brissac

Acting

Willie Rand

Jack Norton

Acting

Gloria Bayne

Janet Shaw

Acting

Ben Carter

Ben Carter

Acting

Hulda Swenson / Janet Carter

Victoria Faust

Acting

Diane Hall

Helen Deverell

Acting

Horace Karloss

Leonard Mudie

Acting

Mr. Chester, program announcer

Reid Kilpatrick

Acting

Mr. Hamilton

Emmett Vogan

Acting

Henchman Cooper

Crane Whitley

Acting

Detective (uncredited)

Kernan Cripps

Acting

Nelson (uncredited)

Charles Jordan

Acting

Police Radio Expert (uncredited)

Kenner G. Kemp

Acting

Herbert Sinclair (uncredited)

Milton Kibbee

Acting

Det. Hodge (uncredited)

Frank Mayo

Acting

Horace Karlos (uncredited)

Leonard Mudie

Acting

Chemist (uncredited)

Tom Quinn

Acting

Sgt. McGraw (uncredited)

Charles Sherlock

Acting

Rausch (uncredited)

Charles Wagenheim

Acting