Discover
Sidney Toler
Charlie Chan
Phyllis Brooks
Judy Hayes
Victor Sen Yung
James Chan
Eddie Collins
Al Hogan
John 'Dusty' King
Randolph
Claire Dodd
Mrs. Carol Wayne
George Zucco
Dr. Cardigan
Robert Barrat
Captain Johnson
Marc Lawrence
Johnny McCoy
Richard Lane
Joe Arnold
Ruth Clifford
Nurse
Layne Tom Jr.
Tommy Chan
Philip Ahn
Wing Foo
Paul Harvey
Inspector Rawlins
Grace Lem
Mama Chan (uncredited)
Camera
Charles G. Clarke
Director of Photography
Costume & Make-Up
Helen A. Myron
Costume Design
Directing
H. Bruce Humberstone
Director
Camera
Charles G. Clarke
Director of Photography
Costume & Make-Up
Helen A. Myron
Costume Design
Directing
H. Bruce Humberstone
Director