Sidney Toler

Charlie Chan

Ricardo Cortez

Dr. Ainsley

Phyllis Brooks

Vivian Wells

Slim Summerville

Sheriff Tombstone Fletcher

Kane Richmond

Curtis Whitman

Victor Sen Yung

Jimmy Chan

Pauline Moore

Mary Whitman

Eddie Collins

Cab Driver

Kay Linaker

Mrs. Wayne Russell

Louise Henry

Jeanne Bentley

Robert Lowery

Wally Burke

Charles D. Brown

Police Chief King

Iris Wong

Choy Wong

Morgan Conway

George Bentley

Hamilton MacFadden

Night Clerk

Jimmy Aubrey

Me #3 Son Wiseguy

Brooks Benedict

Man in Line-Up

Stanley Blystone

Lineup Officer

Heinie Conklin

Policeman

Jerry Frank

Bar Patron

Bobby Hale

Mr. Jones (uncredited)

Chuck Hamilton

Policeman

Harry Hayden

Chemistry Professor

Dick Hogan

Jack - College Student

Fred Kelsey

Reno Desk Sergeant (uncredited)

Al Kikume

Honolulu Policeman (uncredited)

Hank Mann

'Injured' Con Man / Casino Extra

Imboden Parrish

Undetermined Role

Jack Perry

Rough Drunk (uncredited)

Arthur Rankin

Bellhop

Virginia Sale

Maid Reporting Missing Passkey

Edwin Stanley

Police Chemist

Blue Washington

Man in Line-Up

Robert Shaw

College Student (uncredited)

Barbara McLean

College Student (uncredited)

Dick Cherney

Casino Patron (uncredited)