Ellery Queen
Ralph Bellamy
Nikki Porter
Margaret Lindsay
Henry (Jardin butler)
Walter Kingsford
Lee (Matthews butler)
Honorable Wu
Dr. Prouty (coroner)
Charles Lane
Rufus Smith (auctioneer)
Charles Halton
Book salesman
Arthur Q. Bryan
Insp. Queen
Charley Grapewin
Carlotta Emerson
Spring Byington
Ray Jardin
H.B. Warner
Sgt. Velie
James Burke
John Matthews
Douglass Dumbrille
Walter Matthews
John Beal
Marian Jardin
Linda Hayes
Anthony Rhodes
Sidney Blackmer
Director
James P. Hogan
Writer
Manfred Lee
Screenplay
Eric Taylor
Frederic Dannay