Ellery Queen and the Murder Ring

Ralph Bellamy

Ellery Queen

Margaret Lindsay

Nikki Porter

Charley Grapewin

Insp. Queen

Mona Barrie

Nurse Marian Tracy

Paul Hurst

Page

James Burke

Sgt. Velie

Leon Ames

John Stack

George Zucco

Dr. Edwin L. Jannery

Blanche Yurka

Mrs. Augusta Stack

Charlotte Wynters

Miss Fox

Tom Dugan

Lou Thomas

Olin Howland

Dr. Williams

Dennis Moore

Dr. Dunn

Jean Fenwick

Alice Stack

Pierre Watkin

Crothers

Byron Foulger

Hospital Orderly (uncredited)

Eric Taylor

Screenplay

James S. Brown Jr.

Director of Photography

James P. Hogan

Director

Frederic Dannay

Story

Manfred Lee

Story

Gertrude Purcell

Screenplay