Casts
John Bentley
as Superintendent Wills
Patrick Allen
as Dr. Nelson Pollard
Jacqueline Ellis
as Elsa Marlowe
Wilfrid Brambell
as Lock-Keeper
John Glyn-Jones
as Dr. Maurice Tarn
Ric Young
as Johnny Choto
Robert Lee
as Mr. Nam Lee
Yvonne Buckingham
as Miss Russell
William Gaunt
as Mitch Hallam
John Horsley
as Pathologist
