William Gargan

Ellery Queen

Margaret Lindsay

Nikki Porter

John Litel

Norman Hadley

Charley Grapewin

Insp. Queen

James Burke

Sgt. Velie

Frank M. Thomas

Capt. H.T. Daley

Lilian Bond

Adele Belden

Morgan Conway

Ray Stafford

Jack La Rue

Tommy Gould