Cast

Patrick Barr

Det. Insp. Alan Wembury

Alexander Knox

Dr Anthony Lomond

Wilfrid Lawson

Maurice Meister

Sonnie Hale

Samuel Cuthbert 'Sam' Hackett

Louise Henry

Cora Ann Milton

John Longden

Inspector Bliss

Patricia Roc

Mary Lenley

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Peter Croft

John Lenley

Arthur Hambling

Det. Sgt. Richards

George Merritt

Police Station Sergeant

Crew

Walter Forde

Director (Directing)

Edgar Wallace

Novel (Writing)

Sidney Gilliat

Screenplay (Writing)

Ronald Neame

Cinematography (Crew)

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Ernest Irving

Original Music Composer (Sound)

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Charles Saunders

Editor (Editing)