Director/a
George A. Cooper
DIRECTOR/A
Reparto (por orden de créditos)
George Curzon
Sexton Blake
Henry Oscar
Dr. Gibbs
Tony Sympson
Tinker
Gillian Maude
Janet
Philip Ray
Jim Cameron
John Turnbull
Inspector Donnell
Edward Dignon
Hawkins
James Knight
Red
Donald Wolfit
Percy
Johnnie Schofield
uncredited
Ben Williams