John Sackville

as Lord Mortimer

as Hans Knie

as Malcolm Redmond (1 episode)

as Julian Bullard

as Robin Day

as R. Davis Halliwell (1 episode)

as S.I.S. Controller (4 episodes)

as George VI

as Ian

as Paul

as Doctor (1 episode)

as Mr. Saunders (1 episode)

as Phil

as Captain Daniel Waring (1 episode)

as Architect (1 episode)

as Ian Sinclair (2 episodes)