John Graham

as (voice)

as Edward Baines

as Newsreader

as Rex Masson (2 episodes)

as Hospital Administrator (1 episode)

as Clergyman (2 episodes)

as Scottish Passenger (1 episode)

as Professor Hutton (1 episode)

as Philip (1 episode)

as Mr Ashley (1 episode)

as William Davison (1 episode)

as Chief Scientist

as Roy Sanderson (1 episode)

as Frewin

as Inspector

as Graham (1 episode), as Gelder (3 episodes)