Diretor/a
Fred Ellis
DIRETOR/A
Elenco (na ordem dos créditos)
Mary Clare
Mrs Pym
Edward Lexy
Det.-Inspector Shott
Nigel Patrick
Richard Loddon
Janet Johnson
Maraday Wood
Anthony Ireland
Henry Mencken
Irene Handl
Miss Bell
Vernon Kelso
Frank Wood
Robert English
Commissioner of Police
Lionel Dymoke
Assistant Commissioner
Arthur Ridley
Divisional Surgeon
Ben Williams
Detective-Constable
Arthur E. Owen
Hall Porter
Jack Jameson
Clerk from Criminal Record Office
Joan Halliday
Eliza Puttick