'Hall porter forced to join Navy while tracking spies.' (British Film Catalogue)
Ernie Lotinga
Jimmy Josser
Jack Frost
Spud
Jack Hobbs
Lieutenant Commander Cole
Cyril McLaglen
Langford
H. Saxon-Snell
Ling Foo
Lesley Wareing
Leslie Beauchamp
Renee Gadd
Polly
Charles Paton
Professor Black
Florence Vie
Mrs Black
Leslie Stiles
The Admiral
