Director
William Beaudine
DIRECTOR
Writer
Oliver Drake
WRITER
Earl Derr Biggers
Hal Collins
Stars (in credits order)
Roland Winters
Charlie Chan
Keye Luke
Lee Chan
Mantan Moreland
Birmingham Brown
Victor Sen Yung
Tommy Chan
Carol Forman
Sonia Cabot
Robert Livingston
Prof. John Stanley
Nils Asther
Prof. Paul Evans
Beverly Jons
Joan Farnsworth
Martin Garralaga
Pedro Francisco Lopez
George J. Lewis
Capt. Juan Gonzalez
Leslie Denison
Prof. Henry Farnsworth
Erville Alderson
Prof. Scott (uncredited)
Nick Borgani
Henchman (uncredited)
Fred Cordova
Felipe (uncredited)
Juan Duval
Dr. Castalara (uncredited)
Bert LeBaron
Frank Leyva
José (uncredited)
David O. McCall
Townsman (uncredited)
Michael Ross
Pete (uncredited)
Jay Silverheels
Diego (uncredited)
Charles Stevens
Manuel (uncredited)
