Sidney Toler
Role: Charlie Chan
Victor Sen Yung
Role: Jimmy Chan
Cesar Romero
Role: Fred Rhadini
Douglas Fowley
Role: Peter Lewis
Pauline Moore
Role: Eve Cairo
Donald MacBride
Role: Deputy Police Chief J.J. Kilvaine
Douglass Dumbrille
Role: Stewart Salsbury, alias Thomas Gregory
Trevor Bardette
Role: Dr. Zodiac's Servant
Gerald Mohr
Role: Dr. Zodiac (in disguise)
June Gale
Role: Myra Rhadini
Billie Seward
Role: Mrs. Bessie Sibley
Sally Blane
Role: Stella Essex
Charles Halton
Role: Uncle Redley
Louis Jean Heydt
Role: Paul Essex
Jack Chefe
Role: Audience Member
Heinie Conklin
Role: First Taxicab Driver
Sayre Dearing
Role: Audience Member
Bud Geary
Role: Cop at Station House
Harold Goodwin
Role: Airplane Steward
Edith Hallor
Role: Toots - Stout Woman
Fred Kelsey
Role: Detective - in Cab and at Theatre
Al Kikume
Role: Waiter at Hawaiian Village
Kay Linaker
Role: Egyptian Princess Ectoplasm
Hank Mann
Role: Second Taxicab Driver
Margaret Mann
Role: Airplane Passenger
Frank Meredith
Role: Second Detective
Harold Miller
Role: Audience Member
Bruce Mitchell
Role: Police Desk Sergeant
Hans Moebus
Role: Audience Member
Bert Moorhouse
Role: Audience Member
David Newell
Role: Audience Member
Imboden Parrish
Role: Plane Passenger
Tom Quinn
Role: Man at Landing Gate
Arthur Rankin
Role: Airways Official
Fred Rapport
Role: Audience Member
Gloria Roy
Role: Plane Passenger
Jeffrey Sayre
Role: Man at Landing Gate
Harry Strang
Role: Taxicab Dispatcher
Charles Tannen
Role: Plane Passenger
Edwin Tuttle
Role: Audience Member
John Elliott
Role: Doctor - Backstage