Ned (8 episodes)

Bill Stirling (6 episodes)

John Harter

Ted Timmis

James

Grigor Dymov (30 episodes)

Mark Baxter (3 episodes)

DS Charlie Nelson

Ned

Self

Self (1 episode)

Brian May

Captain John Underwood

Alistair

Tom

Samuel Castell (24 episodes)

Narrator (voice) (6 episodes)

James

Sgt Charlie Nelson

DS Charlie Nelson (15 episodes)

Sean Gilmartin (2 episodes)

Giles (1 episode)

Williams (1 episode)

Reverend Henry Jameson (5 episodes)

Senior Technician Mountain