Ifan Meredith

as Colin Spencer (1 episode)

as Lt. Galloway

as Ethan (4 episodes)

as Critic

as Dr. Arthur Lanyon

as Harry Arden (1 episode)

as Lieutenant Jonathan Engel (2 episodes)

as Startop

as Startop (2 episodes)

as Mickey

as Tom Tulliver

as Stephen Bannerman (10 episodes)

as Dave Taylor (1 episode)

as Johnny Reynolds (1 episode)