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)

H. Bruce Humberstone