George Ridgwell
Director
Edgar Wallace
Novel
Patrick L. Mannock
Writer
Clifton Boyne
Derrick Yale
Fred Groves
Inspector Parr
Robert English
Felix Marl
Lawford Davidson
Raphael Willings
Rex Davis
Jack Beardmore
Sidney Paxton
Harvey Froyant
Harry J. Worth
Superintendent
Eva Moore
Aunt Prudence
Norma Whalley
Kitty Froyant
Madge Stuart
Thalia Drummond
Victor McLaglen