Gerald Kyd

as Mylonas (6 episodes)

as Thomas Mercer (3 episodes)

as Luka (6 episodes)

as Rex Callaghan

as David

as Niko (4 episodes)

as Father O'Brien

as Michael Roche (1 episode)

as Dorn

as Harry Graylish (1 episode)

as Gerry Ardwell (1 episode)

as Agent Tolga Celik (1 episode)

as Pierre Du Pont (3 episodes)

as Minister Cameron (1 episode)

as Thomas Ricoletti

as Prof. Tal Greening (1 episode)

as Adrian Mullery (6 episodes)

as Matthew (1 episode)

as Marcus Costello (1 episode)

as Yasha

as Gustavo Helguerra

as Mark Renbe (13 episodes)

as Julio (1 episode)

as Ratza

as General Logan (1 episode)