Warner Oland

Charlie Chan

Drue Leyton

Paula Graham

Donald Woods

Bob Crawford

Paul Harvey

J.P. Madden / Jerry Delaney

Murray Kinnell

Martin Thorne

Reginald Mason

Alexander Crawford

Virginia Hammond

Mrs. Sally Jordan

Si Jenks

Will Holley

Harvey Clark

Prof. Gamble

Jerry Jerome

Maydorf

Jack Carter

Victor Jordan

James Wang

Wong