Sidney Toler as Charlie Chan

Victor Sen Yung as Jimmy Chan

C. Henry Gordon as Dr. Cream

Marc Lawrence as Steve McBirney

Eddie Marr as Henchman Grenock

Charles Wagenheim as Willie Fern

Joan Valerie as Lily Latimer

Marguerite Chapman as Mary Bolton

Hilda Vaughn as Mrs. Joe Rocke

Harold Goodwin as Edwards

Ted Osborne as Tom Agnew

Archie Twitchell as Carter Lane

Michael Visaroff as Otto Von Brom

Joe King as Inspector O'Matthews

Charles Trowbridge as Judge

Emmett Vogan as Prosecuting Attorney

Stanley Blystone as Courtroom Officer

Jimmy Conlin as Tour Bus Barker

Brick Sullivan as Detective Pete