Bud Abbott
Cuthbert Greenway / Dr. Ralph Greenway
Acting
Lou Costello
Horatio Prim
Acting
Marjorie Reynolds
Melody Allen
Acting
Binnie Barnes
Mildred Dean
Acting
John Shelton
Sheldon Gage
Acting
Gale Sondergaard
Emily
Acting
Lynn Baggett
June Prescott
Acting
Jess Barker
Thomas Danbury
Acting
Ann Gillis
Nora O'Leary
Acting
Donald MacBride
Lt. Mason
Acting
William Hall
Sgt. Conners
Acting
Robert Barrat
Maj. Putnam
Acting
Rex Lease
Sgt. Makepeace
Acting
Kirk Alyn
Dandy at Party (uncredited)
Acting
Harry Brown
Second Sergeant (uncredited)
Acting
George M. Carleton
Museum Guard (uncredited)
Acting
Wheaton Chambers
Bill - Museum Guard (uncredited)
Acting
James Conaty
Party Guest (uncredited)
Acting
John Crawford
Dandy at Party (uncredited)
Acting
Vernon Downing
Leigh - Traitor (uncredited)
Acting
Marjorie Eaton
Bessie - Danbury's Maid (uncredited)
Acting
Myron Healey
Dandy at Party (uncredited)
Acting
Boyd Irwin
Cranwell - Traitor (uncredited)
Acting
Selmer Jackson
Mr. Dibbs - Museum Curator (uncredited)
Acting
William H. O'Brien
Danbury Servant (uncredited)
Acting
Scott Thomson
Dandy at Party (uncredited)
Acting
Harry Woolman
Motorcycle Rider (uncredited)
Crew