as Geoffrey(6 eps)
as Robert Davies(6 eps)
as Sir George Crofts
as DCI Callum Lockhart(1 ep)
as Indigo Jeremy(1 ep)
as Piers Morgan(3 eps)
as Tony Conroy(4 eps)
as DI Kevin Salisbury(6 eps)
as Robert Davies(6 eps)
as Michael(1 ep)
as Martin Copeland(8 eps)
as Gavin Daly(1 ep)
as Roy Garrett
as Ned Chambers
as Self - Narrator (British voice)(30 eps)
as Colonel
as The Colonel
as Albert White
as Brigadier Wainwright(7 eps)
as Bobby Day(8 eps)
as DCC Chapman(2 eps)
as Robert
as Duke of Lorraine(2 eps)
as DI Frank Williams(2 eps)
as Self- Narrator
as Ted Shrimpton
as Phil Porter(8 eps)
as Detective Superintendent John Bennett(2 eps)
as Owen Preece(1 ep)
as Self/D.S. Terry Reid
as Dr. Holland
as Frankie(1 ep)
as D.S. Jimmy Valentine / Narrator(1 ep)
as Narrator (voice) (uncredited)(2 eps)
as Empton(1 ep)
as Farmer
as Samuel Selby
as Dave Searle(6 eps)
as Frank Thompson
as Frank Thompson(2 eps)
as Thomas Edison(1 ep)
as Father Brophy(1 ep)
as Narrator
as Ashley Morgan(48 eps)
as Clive Stevenson(6 eps)
as The Controller
as Gerhardt
as Anton Drexler(2 eps)
as DI Clive Wilson(2 eps)
as Robert Weldon(4 eps)
as Home Secretary(14 eps)
as Nicholas Blake(1 ep)
as Capt. Townsend
as Count Malevsky
as Earl of Warwick
as Stephen 'Squeal' Blake
as Tubes(6 eps)
as John Field(1 ep)
as Aristophanes
as Captain Harville
as Charles Sheldon(1 ep)
as Clive Pendle(1 ep)
as DCI Fields(1 ep)
as Jeremy
as DS Reid(2 eps)
as Det Sgt Terrence Reid(2 eps)
as Oliver Langley(1 ep)
as Colour Sergeant Ian Anderson(7 eps)
as Chris Hughes(1 ep)
as Pete(3 eps)
as Colin Morris(12 eps)
as Keith
as Duncan(1 ep)
as Harry
as Peter
as Derek Pullen(4 eps)
as Jessel(1 ep)
as Ken(6 eps)
as Salateen
as Jurek Borowczak
as Billy
as Steve Webber(19 eps)
as Lorenzo(1 ep)
as Student(1 ep)
as Billy(1 ep)
as Salateen(4 eps)