as Mr. Dubbin
as Nyder
as Stephen Kedge
as Major General Oster
as Nyder (archive recording)
as Dr. Lawrence
as Professor Whittaker
as Doctor
as Mr. Reise
as BBC Executive
as Professor Whitaker
as Dr. Whatmore
as Secretary Rontane
as Arranches
as Bradshaw
as Harry Gold
as Arthur Wainright
as Registrar
