Ellery Queen and the Murder Ring Oyuncuları

Yönetmen	James P. Hogan
Oyuncu
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)
Thomas J. Dugan
Barlowe Borland
Evelyn Brent
Don Brodie
Dick Curtis
Edgar Dearing
Claire Du Brey
Edward Gargan
Harrison Greene
Eddie Kane
Dave O'Brien
Harry Tenbrook
Harry Tyler
Pat West
Senaryo
Eric Taylor , Gertrude Purcell
Görüntü Yönetmeni
James S. Brown Jr.
Hikaye
Frederic Dannay , Manfred Lee
Üretim Hizmetleri
Larry Darmour
Müzik
Lee Zahler
Sinematografi
James S. Brown Jr.
Dublörler
Dave O'Brien
Genel
Dwight Caldwell