Bud Abbott as Casey Edwards

Lou Costello as Freddie Phillips

Boris Karloff as Swami Talpur

Lenore Aubert as Angela Gordon

Gar Moore as Jeff Wilson

Donna Martell as Betty Crandall

Alan Mowbray as Melton

James Flavin as Insp. Wellman

Roland Winters as T. Hanley Brooks

Nicholas Joy as Amos Strickland

Mikel Conrad as Sgt. Stone

Morgan Farley as Gregory Milford

Victoria Horne as Mrs. Hargreave

Percy Helton as Abernathy

Claire Du Brey as Mrs. Grimsby

Harry Hayden as Lawrence Crandall

Vincent Renno as Mike Relia

Murray Alper as Joe, Reporter (uncredited)

Bobby Barber as Dry Cleaning Man (uncredited)

Marjorie Bennett as Second Maid (uncredited)

Gail Bonney as First Maid (uncredited)

Harry Brown as Medical Examiner (uncredited)

Jack Chefe as Barber (uncredited)

Eddie Coke as Reporter (uncredited)

Beatrice Gray as Woman (uncredited)

Billy Gray as Boy With Bow and Arrow (uncredited)

Patricia Hall as Manicurist (uncredited)

Arthur Hecht as Photographer (uncredited)

William H. O'Brien as Room Service Waiter (uncredited)

Ed Randolph as Bootblack (uncredited)

Phil Shepard as Bellboy (uncredited)

Billy Snyder as Reporter (uncredited)

Frankie Van as Bozzo (uncredited)