Moultrie Kelsall

as Sir Archie

as Sir Angus (archive footage)

as Alick Wylie

as Tradul (6 episodes)

as Sheriff Derwent (12 episodes)

as Dr.Gilchrist (1 episode)

as Sir Angus (1 episode)

as Mr McCloud (2 episodes)

as Minister

as Vice Admiral Ashurst

as Alexander Drummond (1 episode)

as Andrew Flaxton (9 episodes)

as Pete Bowles

as Prof. Leach

as Professor Leach (1 episode)

as Dr. George Fratton (26 episodes)

as Fergus Clanraith (1 episode), as Calvin Gray (1 episode)

as The Minister

as Magistrate

as Chief Insp. Gordon (14 episodes)

as Graham

as Narrator

as British Correspondent