Director/a
Percy Nash
DIRECTOR/A
Escritor/a
Arthur Conan Doyle
ESCRITOR/A
Harry Engholm
George de Beaurepaire
Reparto (por orden de créditos)
Dick Webb
Robert Montgomery
Dora Lennox
Dorothy Oldacre
Jack Stanley
ACTOR
Joan Ritz
Anastasia Craggs
Cecil Morton York
Dr. Oldacre
Louis Rihll
Mr. Grain
Mabel Penn
Mrs. Oldacre
J.T. MacMillan
Mr. Purvis
George Turner
Mr. Fawcett
Ernest Wallace
Mr. Wilson
