Hubert Harrison

Colin May

French Museum Foreman (2 episodes)

Pete McLoud (1 episode)

Algernon 'Al' Ford (1 episode)

Gareth Ellmann

Fraser (4 episodes)

Sgt. Ed Graham

Consultant Neurosurgeon

Marc Wilson (5 episodes)

Jez Bloxby (4 episodes)

(1 episode)

(1 episode)

Obi (5 episodes)

CIA Doctor (1 episode)

Colin Walters (1 episode)

Mal Milligan (8 episodes)

Jeff (1 episode)

Major Oliver Sinclair (20 episodes)

(7 episodes)

Howard (2 episodes)

Test Subject (1 episode)

Cpl. Willard Lacey (2 episodes)

Ash

(1 episode)

Sgt Trev Ellington

Steve

Tom Gorman (17 episodes)

Joe Myhill (1 episode)

Dr Monk (1 episode)