Peter Miles

as Mr. Dubbin

as Stephen Kedge

as Nyder (archive recording)

as Professor Whittaker

as Nyder

as Dr. Lawrence

as Doctor

as Dr. Whatmore

as Professor Whitaker

as Nyder

as Dr. Lawrence

as Arranches

as Bradshaw

as Secretary Rontane

as Registrar

as Arthur Wainright

as Major General Oster

as Harry Gold