Maurice Elvey
Director
L'Estrange Fawcett
Scenario Writer
Noel Pemberton-Billing
Theatre Play
Percy Strong
Director of Photography
Andrew Mazzei
Art Direction
Gordon Conway
Costume Design
L'Estrange Fawcett
Screenplay
Jameson Thomas
Michael Deane
Benita Hume
Evelyn Seymour
Humberston Wright
Dr. Stephen Seymour
Basil Gill
President of the Federated States of Europe
Edith Barker Bennett
Minor Role
James Carew
Lord Rowleigh
Alf Goddard
Tele-radiographer
Judd Green
James Groves
Clifford Heatherley
Delegate
Hayford Hobbs
Charles Falloway
Raymond Massey
Member of Federated States Council
Wally Patch
Peace League Commissionaire
Rène Ray
Irene Rooke
Senator
Milton Rosmer
Ernest Stratton
John Singer
Boy
Kiyoshi Takase
Arms Manufacturers' Henchman
Henry Vibart
Lord Sycamore
