Cast
Charley Grapewin
Insp. Queen
Paul Hurst
Page
Pierre Watkin
Crothers
Ralph Bellamy
Ellery Queen
Margaret Lindsay
Nikki Porter
Mona Barrie
Nurse Marian Tracy
George Zucco
Dr. Edwin L. Jannery
Blanche Yurka
Mrs. Augusta Stack
Charlotte Wynters
Miss Fox
Jean Fenwick
Alice Stack
Byron Foulger
Hospital Orderly (uncredited)
Dennis Moore
Dr. Dunn
James Burke
Sgt. Velie
Leon Ames
John Stack
Tom Dugan
Lou Thomas
Olin Howland
Dr. Williams