Ralph Bellamy

Ellery Queen

Margaret Lindsay

Nikki Porter

Charley Grapewin

Insp. Queen

Spring Byington

Carlotta Emerson

H.B. Warner

Ray Jardin

James Burke

Sgt. Velie

Douglass Dumbrille

John Matthews

John Beal

Walter Matthews

Linda Hayes

Marian Jardin

Sidney Blackmer

Anthony Rhodes

Walter Kingsford

Henry (Jardin butler)

Honorable Wu

Lee (Matthews butler)

Charles Lane

Dr. Prouty (coroner)

Charles Halton

Rufus Smith (auctioneer)

Arthur Q. Bryan

Book salesman

James P. Hogan