Michael Nardone

as Plotter (Jacobin Club)

as George

as Douglas Suter (6 episodes)

as DCI Neil McKinven (12 episodes)

as Henry McKinnon (4 episodes)

as Nick

as Daan

as Edward Arden (4 episodes), as Ghost of Edward Arden (2 episodes)

as Shield Gate Officer

as Det Supt Leish (3 episodes)

as Brown

as Frisky (8 episodes)

as Semyon Okun

as The Duke of Cornwall

as Private Elias Molloy (1 episode)

as Hermann Kruger (1 episode)

as Wayland

as Donnie Tulloch (2 episodes)

as Sergeant Butcher (5 episodes)

as PS O'Neill (2 episodes), as PS Frank O'Neill (1 episode)

as Man 3

as Frank

as Vladimir Bayanov (1 episode)

as Hortator (2 episodes)

as Mike Baker (13 episodes)