Ellery Queen's Penthouse Mystery

"Chinese ventriloquist Gordon Cobb is murdered by a gang of jewel thieves. Baffled by the contradictory clues, Inspector Queen asks his son Ellery to help out."

Cast

Ralph Bellamy

as Ellery Queen

Margaret Lindsay

as Nikki Porter

Charley Grapewin

as Insp. Queen

Anna May Wong

as Lois Ling

James Burke

as Sgt. Velie

Eduardo Ciannelli

as Count Brett (as Edward Ciannelli)

Frank Albertson

as Sanders

Ann Doran

as Sheila Cobb

Noel Madison

as Gordon Cobb

Charles Lane

as Doc Prouty

Russell Hicks

as Harry Walsh

Tom Dugan

as McGrath

Mantan Moreland

as Roy

Theodore von Eltz

as Jim Ritter

Crew

James P. Hogan

Director

Lee Zahler

Original Music Composer

Manfred Lee

Writer

Eric Taylor

Screenplay

James S. Brown Jr.

Director of Photography

Frederic Dannay

Writer

Dwight Caldwell

Editor

Larry Darmour

Producer