Cast
Sidney Toler
Charlie Chan
Victor Sen Yung
Jimmy Chan
Lenita Lane
Lucy Borgia Manderley
Douglass Dumbrille
Paul Manderley
Steven Geray
Dr. Retling
Edmund MacDonald
Walter Hartford
Arleen Whelan
Brenda Hartford
Ethel Griffies
Mme. Saturnia, aka Lizzie
Henry Daniell
Watson King
Richard Derr
Carl Detheridge
Lucien Littlefield
Prof. Gleason
Milton Parsons
Arthur Fletcher
George Chandler
The Bus Driver
Oliver Blake
The Hotel Manager
Eric Wilton
The Majordomo
Paul Kruger
(unconfirmed)
Tex Phelps
(scene deleted)
Crew
Costume & Make-Up
Herschel McCoy
Costume Design
Directing
Harry Lachman
Director
Editing
John Brady
Editor