Enemy Agents Meet Ellery Queen

James P. Hogan

Manfred Lee

Frederic Dannay

Eric Taylor

Arthur Strawn

William Gargan

Ellery Queen

Margaret Lindsay

Nikki Porter

Charley Grapewin

Police Inspector Richard Queen

Gale Sondergaard

Mrs. Van Dorn

Gilbert Roland

Paul Gillette

Sig Ruman

Heinrich - Spy Leader

James Burke

Police Sgt. Velie

Ernst Deutsch

Dr. Morse - Lido Club Physician

Maurice Cass

Mr. Calkus - Museum Owner

Minor Watson

Cmdr. Lang

Felix Basch

Helm - Lido Club Manager

John Hamilton

Police Commissioner Bracken

James Seay

Marine Sgt. Stevens

Ludwig Donath

Reece

Dick Wessel

The Big Sailor

Billy Bletcher

The Small Sailor

Willy Castello

Joseph--Chauffeur

Dorothy Granger

Apartment Tenant

Grace Hayle

Overweight Woman

William Newell

Apartment Tenant

Ralph Cohn

James S. Brown Jr.

Dwight Caldwell