- Lee Montague - Det. Chief. Inspector Lacey
- Frederik de Groot - Olaf Schram
- Terence Plummer - Club Bounce
- Peter Sproule - George Henshaw
- Julia Watson - Terry
- Vincenzo Nicoli - Colombian
- Christopher Benjamin - Sam Powell
- Don Henderson - Don
- Elaine Ives-Cameron - Mrs. Prescott-Lowell
- Zienia Merton - Lei Shan
- William Simons - Tennant
- David Barrass - Det. Insp. Wilson
- Ian McCulloch - Archie McAllister
- Terence Budd - Jim Presley
- Elisabeth Sladen - Mrs. Barrett
- Jamie Foreman - Ramsey
- Lou Hirsch - Wee Jock
- Mark Jones - Clarendon's Assistant
- Billy Murray - Billy Kennaway
- Linal Haft - Perry
- Jonathan Linsley - Butch
- Jack Watson - Terence Harris
- Roy Boyd - Depot Sergeant
- Patrick Murray - Launderette Manager
- Barbara Young - Miriam Powell
- Kate O'Mara - Joyce Hargreaves
- Nicola Stapleton - Debbie
- Michael Melia - Paul Marshall
- Stuart Milligan - Schwartz
- Ralph Arliss - Naismith
- Linda Regan - Gloria
- Tip Tipping - William Thornton
- Trevor Byfield - Chentzu Spiceri
- Trevor Ray - Roger Watts
- Michael Cashman - Prosecuting Counsel
- Niall Tóibín - Assist. Com. Webb
- Edward Kelsey - Stavros
- Karl Howman - Photographer
- Eamonn Walker - Edwin Shore
- Bruce Boa - Coltrane
- Michael Robbins - Simmons
- Linzi Drew - Stripper
- Tim Preece - Psychiatrist
- Derek Newark - Corman
- Christopher Ellison - Tommy
- Ralph Michael - Lord Winfield
- Colin Prockter - John Bates
- Terence Alexander - Commander Duffield
- Peter Cleall - Stephen Crane
- Suzi Quatro - Cathy
- Tom Georgeson - Jack Cade
- Milton Johns - Sid Lowe
- Malcolm Terris - Major Danby
- Barrie Cookson - Charles Radley
- Mark Ryan - Jimmy
- Damien Thomas - Tony
- Godfrey James - Jack Lang
- Stephen Frost - Big Mall
- Tracey Childs - Lucy Gartrell
- Amanda Pays - Tiffany Grace
- James Gaddas - Andy
- Richard Johnson - Daish
- Catriona MacColl - Angie Hughes
- Valentino Musetti - Customs Officer
- Edward Peel - Sullivan
- Clive Mantle - Big Ben Davis
- George Irving - Mickey the Shiv
- Richard Mayes - Fetterman
- Eric Deacon - Paul Davis
- John Malcolm - Sammy Bryce
- Christopher Strauli - James Bessel
- Ray Jewers - Phil Parris
- Mark Wing-Davey - Mark Savory
- Peter Ross-Murray - Eddie
- Desmond Cullum-Jones - Coltrane
- Billy Kearns - O'Grady
- Norman Chancer - Bologna
- Douglas Milvain - Sir John Fielding
- John Barcroft - Asst. Com. Jennings
- Eric Kent - Danny Price
- Tony Jay - Abe Moser
- Margot Van der Burgh - Diana Moser
- Paul Bacon - Phillpott
- Laurin Kaski - Stefan
- Cheryl Prime - Car Rental Girl
- Victor Baring - Club Manager
- Robert Blythe - Frank
- Colin Edwynn - Charlie
- Jonathan Stratt - Terry Bayliss
- John Moreno - Reynolds
- James Beckett - Mikel Spiceri
- Maureen Sweeney - Gloria
- Michael Warburton - Boy on Bike
- Joanne Good - Girlfriend
- Eddie Stacey - Gunman
- Robert Austin - Peter Ferris
- Raymond Brody - Prince Razul
- Genevieve Allenbury - Roz James
- Debbie Wheeler - Annabel
- Paul Foulds - Graham Locke
- Brian Croucher - Frank Egan
- Ian Thompson - Hutchings
- Steve Emerson - Hadley
- Dave Cooper - Willie Ferguson
- Frank Duncan - Judge
- Neville Jason - Stephen Heller
- Maureen O'Farrell - Sandra
- Colin McFarlane - Watson
- Colin McFarlane - Det. Sgt. Watson
- Angus MacKay - Jeffries
- Christopher Saul - Passport Officer
- Mike Mungarvan - Tower Control Officer
- Frank Jakeman - Bodyguard
- Derek Ware - Price
- Michael Carter - Hurst
- Stephen Greif - Bernie Silk
- George Leech - Warder
- Rocky Taylor - Warder
- Ronald Nunnery - Tote Clerk
- Gregory Cox - Hood
- Gary Shail - Eddie
- Nick Stringer - Piglet
- Neville Rofalia - Salim Masad
- Tony Alleff - Yasir
- Michael Halphie - Khalil
- Richard Strange - Gerry
- Dawn Hope - Kristy
- Tracy Hyde - Julie
- Bernard Padden - Midge
- Yashaw Adem - Yassouf Kerim
- Christian J. Fletcher - S.I.10 Officer
- Mike Lewin - Detective
- William Boyde - Merle
- Brian Coburn - Davros
- Christopher Tajah - Lenny
- Stephen Persaud - Ziggy
- Chris Webb - Hood on Motorbike
- Chris Webb - Hood
- Bill Gavin - Jimmy-le-Horn
- Steve Edwin - Serge
- Ian Flintoff - Customs Officer
- Paul Cooper - Reporter
- Vincent Wong - Oriental Hood
- Roger Booth - Jack
- Desmond McNamara - Charlie Wilson
- Carole Nimmons - Tessa
- Sean Scanlan - Sean
- Jean Rimmer - Mrs. Harvey
- Peter Spraggon - Chauffeur
- Jenny Robbins - S.I.10 Switchboard Operator
- Desmond Jordan - Prison Governor
- Matthew Long - Prison Officer Edwards
- Seretta Wilson - Susan Sims
- Roy Alon - Hood on Motorbike
- Roy Alon - Motorcyclist
- Roy Alon - Boatman
- Christina Greatrex - Frances Trafford
- Gareth Milne - Customs Officer
- Gareth Milne - Ex-Paratrooper
- Gareth Milne - Fergus
- Brian Hawksley - Dr. Potter
- Christopher Robbie - Selwyn
- Brenda Kempner - Esmeralda
- Patrick Blackwell - Biffin
- Jason James - Jessop
- John Horsley - Judge Lionel Hackett
- Sarah Sherborne - Sarah Hackett
- Brett Forrest - Dr. Robertsun
- Ruby Head - Mrs. Bates
- Trevor Steedman - Dealer's Minder
- Trevor Steedman - Plainclothes Man
- Niven Boyd - P.C. Pringle
- Peter Barnes - P.C. Dunn
- David Baxt - Joey
- David Baxt - Joe
- Iain Rattray - Morgue Officer
- Ronnie Laughlin - S.I.10 Detective
- Llew Gardner - Newscaster
- George Harris - Reuben
- Ronny Cush - Drew
- Anthony Dutton - Maclean
- Alan Downer - Solomon
- Norman Hartley - Dan
- Bazil Otoin - Jake
- Tony Stephens - Nick
- Tony Stephens - Masked Man
- Howard Cooke - Boy at Liquor Store
- Andy Bradford - Ex-Paratrooper
- Andy Bradford - Gunman
- William Parker - Teller
- Ken Barker - Chauffeur
- Tom Kelly - Tom Clyde
- Peter Hutchins - Evil Bill Dundas
- Geoffrey Freshwater - Eddie Haig
- Leon Tanner - Det. Supt. McNally
- Lois Baxter - Ellen Cade
- Berwick Kaler - Mechanic
- John Boswell - Foley
- Mike Savage - Ripley
- Barbara Barnes - Paula
- Greg Powell - Ginger Danson
- Greg Powell - Guard
- Tony London - Levey
- Phil Smeeton - Rawlings
- Jerry Harte - James Martin
- Suzanne Church - Julia
- Christopher Bowen - Wilkins
- Philippa Urquhart - Mrs. Jones
- Mark Billingham - Steve
- Roz Freeman-Atwood - Fiona
- Terry Yorke - Jewellery Dealer
- Susan Field - Flower Seller
- Tracy Harper - Bank Teller
- Stuart St. Paul - Jewellery Thief
- Roy Evans - Sims
- Lloyd McGuire - Norman
- Kate Lynn Evans - Angela
- Angela Bruce - Nursing Sister
- Johnny Dennis - Video Shop Owner
- Stefan Kalipha - Colonel Rasheed
- Dudley Sutton - Bailey
- Derek Martin - Scott
- Julian Fellowes - Redgrave
- Nayef Rashed - Yassin
- Gaby Dellal - Leila
- Paul Ridley - Markham
- Steve Fletcher - Punk
- Neville Phillips - Carpet Dealer
- Hugh Ross - Van Gelder
- David Belcher - Arch Warton
- Patti Boulaye - Faith McColl
- Ray Charleson - Joe Delaney
- Stephen Hattersley - Det. Sgt. Jimmy Bartholomew
- Mark Heath - Sam Rice
- Anthony Morton - Picasso
- Arne Gordon - Luigi
- Richard Ashley - Drugs Squad Detective
- Paul Weston - Radley's Driver
- Benjamin Whitrow - Lindsay
- Caroline Bliss - Laura
- Ian Price - Piers Aylward
- Kenny Ireland - Lucky Livingstone
- David Landberg - Dowsett
- Dawn Perllman - Sharon
- David Savile - Sir Toby Millwood
- Terence Mountain - Barman
- John Blythe - Rose
- Phil Murray - Phil
- Timothy Block - Miller
- Garry Roost - Mick
- Terry Downes - Terry
- Michael Balfour - Jim Kelly
- Suzie Cerys - Secretary
- Nick Hobbs - Ex-Paratrooper
- Nick Hobbs - Blaker
- Doug Robinson - Danny
- John Cassady - Leon Giardino
- Anita Graham - Blossom
- Philip Anthony - Hotel Manager
- Bunny May - Snooker Player
- Jill St. John - Mara Giardino
- Michael Shannon - Conrad
- Barrie Houghton - Kereg
- William Ilkley - Policeman
- Stephan Chase - Edwards
- Lea Rochelle - Female Terrorist
- Marc Boyle - Male Terrorist
- Wayne Michaels - Ex-Paratrooper
- Wayne Michaels - Policeman
- Kenneth Gilbert - Dr. Swann
- Stuart Mungall - Billy Lucas
- Carmel McSharry - Mrs. Davis
- Simon Crane - Policeman
- Andrew Sketchley - Det. Sgt. Taylor
- Martyn Whitby - Malley
- Richard Klee - Dr. Pohl
- Ben Howard - Jerry Curtis
- June Barry - Mrs. Spikings
- Patrick Durkin - Horse Johnson
- Jonathan Docker-Drysdale - D.S. Ward
- Jonathan Docker-Drysdale - Det. Sgt. Ward
- Lee Walker - Mick Tucker
- Gerry Crampton - Knuckles Brannigan
- Kevin Lloyd - Jimmy Mulgrew
- Phil McCall - Mac
- Seeta Indrani - Doctor
- Lorna Barton - Cocktail Waitress
- Mark Penfold - Forensics
- George Lane Cooper - Mountaintop
- Philip Ryan - Referee
- Nick Brimble - Keith Lymon
- Annabel Leventon - Christine Bayly
- Andrew Dunn - Det. Con. Austin
- Kevin Quarmby - Munro
- Robert Pereno - Eddie Dean
- Peter Pacey - Kevin Dean
- Heather Alexander - Annie
- Robert Hudson - Calder
- Garry Cooper - Swabey
- Lesley Clare O'Neill - Phyllis
- Roger Watkins - Publican
- Susannah Fellows - Simone
- Kim Wall - D.C. Fry
- Francisco Morales - Cortez
- Chris Humphreys - Damien
- Jeffrey Chiswick - Tulley
- Richard Ridings - Tulley's Sidekick
- Chris Walker - Barman
- Mark Monero - Drugs Dealer
- Patrick Gordon - Colombian
- Arturo Venegas - Colombian
- Stephen Gressieux - Colombian
- Thelma Ruby - Mrs. Lupin
- Christopher Reich - Mick Ryan
- Michael Watkins - Danny Walsh
- Cory Pulman - Julia Powell
- Peter Lovstrom - Des Johnsone
- Leon Herbert - Det. Con. MacPherson
- Heinz Bernard - Rabbi
- Harry Jones - Rat-faced Webster
- David Squire - White Kid
- Eddie Nestor - Black Kid
- Bryan Jacobs - Bridegroom
- Chuck Julian - Photographer
- John Ainley - Crazy Joe
- Peter Brace - Hitman
- Peter Brace - Gunman
- Sydney Golder - Steven Albert Knee
George Harris interpreta a Reuben en la serie.
Jamie Foreman hace el papel de Ramsey.
Michael Brandon interpreta a James Dempsey en la serie.
Glynis Barber interpreta a Harriet Makepeace en la serie.
Tony Osoba interpreta a Det. Sgt. Chas Jarvis en la serie.
Ray Smith hace el papel de Spikings.
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