Charlie Chan
Sidney Toler
Dr. Ainsley
Ricardo Cortez
Wally Burke
Robert Lowery
Police Chief King
Charles D. Brown
Choy Wong
Iris Wong
George Bentley
Morgan Conway
Night Clerk
Hamilton MacFadden
Me #3 Son Wiseguy
Jimmy Aubrey
Man in Line-Up
Brooks Benedict
Lineup Officer
Stanley Blystone
Policeman
Heinie Conklin
Bar Patron
Jerry Frank
Vivian Wells
Phyllis Brooks
Mr. Jones (uncredited)
Bobby Hale
Chuck Hamilton
Chemistry Professor
Harry Hayden
Jack - College Student
Dick Hogan
Reno Desk Sergeant (uncredited)
Fred Kelsey
Honolulu Policeman (uncredited)
Al Kikume
'Injured' Con Man / Casino Extra
Hank Mann
Undetermined Role
Imboden Parrish
Rough Drunk (uncredited)
Jack Perry
Bellhop
Arthur Rankin
Sheriff Tombstone Fletcher
Slim Summerville
Maid Reporting Missing Passkey
Virginia Sale
Police Chemist
Edwin Stanley
Blue Washington
College Student (uncredited)
Robert Shaw
Barbara McLean
Casino Patron (uncredited)
Dick Cherney
Curtis Whitman
Kane Richmond
Jimmy Chan
Victor Sen Yung
Mary Whitman
Pauline Moore
Cab Driver
Eddie Collins
Mrs. Wayne Russell
Kay Linaker
Jeanne Bentley
Louise Henry
Director
Norman Foster
Characters
Earl Derr Biggers
Writer
Frances Hyland