Arthur Pentelow

as Dr. Grant

as George Greenwood

as Henry Wilks

as Leo Stanley

as British General

as Man with Car

as Bonfils

as Inspector Plummer

as Frank

as Doctor

as Wilfred Rossell

as Mr. Grace

as Peter Strang

as Mr. Lewis

as Brigadier

as Arnold Foster

as Councillor Cleghorn

as Dr. Probyn

as Managing Director

as Sir Hubert Yerbray

as Felipe Ordones

as LC Hilden

as Maigrat

as George Hobson

as Frank

as Arthur Eastwood

as Workman

as Peter Strang

as Wilfred Rossell