- Patrick Mower
- Â Det. Supt. Steve Hackett 17 episodes, 1977-1978
- Philip Madoc
- Â Det. Chief Supt. Tate 17 episodes, 1977-1978
- Brendan Price
- Â Det. Sgt. Frank Bonney 17 episodes, 1977-1978
- Vivien Heilbron
- Â Det. Sgt. Louise Colbert 17 episodes, 1977-1978
- Ania Marson
- Â Ros 5 episodes, 1977
- Carl Rigg
- Â Det. Con. Dukes 4 episodes, 1977
- Grahame Mallard
- Â Det. Con. Fletcher 3 episodes, 1978
- Derek Martin
- Â Alan Ziegler / ... 2 episodes, 1977-1978
- Stephen Bent
- Â Det. Sgt. Andrews / ... 2 episodes, 1977-1978
- Del Baker
- Â Carter's Thug / ... 2 episodes, 1977-1978
- Eddie Powell
- Â Carter's Thug / ... 2 episodes, 1977-1978
- Kirstie Pooley
- Â Celia Southern 1 episode, 1978
- Maurice Roëves
- Â Harry Skeats 1 episode, 1977
- Ken Hutchison
- Â Sharkey 1 episode, 1977
- David Daker
- Â Mike Ansell 1 episode, 1977
- Prunella Scales
- Â Diana Blake 1 episode, 1978
- Jan Francis
- Â Jenny 1 episode, 1978
- Christopher Neame
- Â Billy 1 episode, 1978
- Alfred Marks
- Â Wally Vincent 1 episode, 1978
- John Judd
- Â Chaz Carter 1 episode, 1978
- Max Wall
- Â Geoffrey Wyatt 1 episode, 1978
- Freddie Jones
- Â Det. Chief Supt. Neville Clegg 1 episode, 1977
- Philip Stone
- Â David Fleming 1 episode, 1977
- Katy Manning
- Â Joanne 1 episode, 1977
- T.P. McKenna
- Â Ruby Daniels 1 episode, 1977
- Lee Montague
- Â Richard Tufnell / ... 1 episode, 1977
- Sandy Ratcliff
- Â Angie Dawson 1 episode, 1977
- Bernard Spear
- Â Tyler 1 episode, 1977
- Patricia Hodge
- Â Laura Bentley 1 episode, 1978
- Tom Chadbon
- Â Timothy Aspel 1 episode, 1978
- Lewis Fiander
- Â Kingham 1 episode, 1978
- Tony Caunter
- Â Brice 1 episode, 1978
- Ray Smith
- Â Jack Sissons M. P. 1 episode, 1978
- Leslie Sarony
- Â Pa Carter 1 episode, 1978
- Brian Cox
- Â Billy Voss 1 episode, 1977
- Kenneth Colley
- Â Jessal 1 episode, 1977
- Norman Rossington
- Â Deputy Chief Constable Goddard 1 episode, 1977
- Luan Peters
- Â Denise Musgrave 1 episode, 1977
- Bridget Turner
- Â Esther Daniels 1 episode, 1977
- Janet Amsden
- Â Jane 1 episode, 1977
- Walter Randall
- Â Cetti 1 episode, 1977
- Peter Godfrey
- Â Van der Linden 1 episode, 1977
- Brian Glover
- Â Labour Party Agent 1 episode, 1978
- Michael Shannon
- Â Bradley 1 episode, 1978
- David Beckett
- Â Terry Maskell 1 episode, 1978
- Neville Barber
- Â John McCorqudale 1 episode, 1978
- Phil Davis
- Â Ray 1 episode, 1977
- Pamela Stephenson
- Â Susan Clegg 1 episode, 1977
- Roy Marsden
- Â Mac 1 episode, 1977
- Billy Murray
- Â Rex Adcock 1 episode, 1977
- Christopher Benjamin
- Â Panter 1 episode, 1977
- Madhav Sharma
- Â Nasrullah 1 episode, 1977
- Jon Laurimore
- Â Maynard 1 episode, 1977
- Aimée Delamain
- Â Susan de Veer 1 episode, 1977
- Terry Cowling
- Â Gane 1 episode, 1977
- Yvonne Antrobus
- Â Mrs. McCorqudale 1 episode, 1978
- Peter Childs
- Â John Perry 1 episode, 1978
- Keith Hazemore
- Â Jimmy Arthur 1 episode, 1978
- David Freedman
- Â Michael 1 episode, 1978
- Hugh Fraser
- Â Sergeant Foster 1 episode, 1977
- Anthony Ainley
- Â Alexander Trist 1 episode, 1977
- Ron Pember
- Â Tom Farlow 1 episode, 1977
- Michael Petrovitch
- Â Duffy 1 episode, 1977
- Billy Hamon
- Â Terry 1 episode, 1977
- Martin Jacobs
- Â Frank Daniels 1 episode, 1977
- Keith James
- Â Purser 1 episode, 1977
- Rafiq Anwar
- Â Rahmin Khan 1 episode, 1977
- Ian MacKenzie
- Â Colin 1 episode, 1977
- Tony Osoba
- Â Abbo 1 episode, 1978
- Lance Percival
- Â Lloyd Johnson 1 episode, 1978
- John Malcolm
- Â Ernest Millet 1 episode, 1978
- Kenneth Gardnier
- Â Wordsworth 1 episode, 1978
- Rodney Lovick
- Â Sir Eric Beuachamp 1 episode, 1978
- Charles Kay
- Â Charles Rosetti 1 episode, 1977
- Glynn Edwards
- Â Det. Chief Supt. Dyer 1 episode, 1977
- Tina Heath
- Â Janet 1 episode, 1977
- Jamila Massey
- Â Mrs. Khan 1 episode, 1977
- Peter Birrel
- Â Eric Gill 1 episode, 1977
- Hilary Crane
- Â Judy Farlow 1 episode, 1977
- Jack May
- Â Chief Officer 1 episode, 1977
- Sara Clee
- Â Samantha Daniels 1 episode, 1977
- Alan Rebbeck
- Â Pink 1 episode, 1977
- Glyn Houston
- Â Mostyn Price 1 episode, 1978
- Toni Palmer
- Â Sandra Palmer 1 episode, 1978
- Gwen Cherrell
- Â Catherine Millet 1 episode, 1978
- Roland MacLeod
- Â Prentice 1 episode, 1978
- Alan Lake
- Â Swain 1 episode, 1977
- Andrew McCulloch
- Â Jimbo 1 episode, 1977
- Robert Putt
- Â Platt 1 episode, 1977
- Dorothy White
- Â Maureen Wall 1 episode, 1977
- Leslie French
- Â Councillor Harry Meegan 1 episode, 1977
- Dennis Chinnery
- Â Manning 1 episode, 1977
- Colin Edwynn
- Â Finch 1 episode, 1977
- Allan Mitchell
- Â Security Chief 1 episode, 1977
- Stephen Hatton
- Â Des 1 episode, 1977
- David Lodge
- Â Escott 1 episode, 1978
- Ian Thompson
- Â Collins 1 episode, 1978
- Sally Faulkner
- Â Dee 1 episode, 1978
- Virginia Stride
- Â Gemma Maskell 1 episode, 1978
- Ted Moult
- Â Minister 1 episode, 1978
- Ben Aris
- Â Phillips 1 episode, 1977
- James Marcus
- Â Lewis 1 episode, 1977
- Davyd Harries
- Â Billy Miles 1 episode, 1977
- Ivor Roberts
- Â Bank Manager 1 episode, 1977
- Maurice Bush
- Â Grizzly 1 episode, 1977
- Kenton Moore
- Â Det. Insp. Donkin 1 episode, 1977
- Richard Domfe
- Â Roy 1 episode, 1977
- Michael McKevitt
- Â Rocky Wall 1 episode, 1977
- Cindy O'Callaghan
- Â Chrissy 1 episode, 1978
- Nick Stringer
- Â Mathews 1 episode, 1978
- Derek Smith
- Â Ponty 1 episode, 1978
- John Lyons
- Â Smith 1 episode, 1977
- Andy Bradford
- Â Student 1 episode, 1977
- Verna Harvey
- Â Judy Knight 1 episode, 1977
- Norman Tipton
- Â Nick 1 episode, 1977
- Martyn Read
- Â Police Sergeant 1 episode, 1977
- Richard Hampton
- Â Det. Sgt. Burns 1 episode, 1977
- Frank Jarvis
- Â Det. Insp. Charlie Hunt 1 episode, 1977
- Ann Zelda
- Â Elizabeth 1 episode, 1977
- Chris Hallam
- Â Gerry 1 episode, 1977
- John Rhys-Davies
- Â Hecht 1 episode, 1978
- John Hartley
- Â Ronnie 1 episode, 1978
- Paul Haley
- Â Customs Officer 1 episode, 1978
- Simon Mower
- Â Jimmy Hackett 1 episode, 1978
- Leon Eagles
- Â Lazenby 1 episode, 1977
- Ian Collier
- Â Sgt. Wilcox 1 episode, 1977
- Diana Berriman
- Â Woman 1 episode, 1977
- Georgina Kean
- Â Roadrunner 1 episode, 1977
- Tom McCabe
- Â Rigby 1 episode, 1977
- Mark Sheridan
- Â Alan 1 episode, 1977
- Peter Holt
- Â Reg Butler 1 episode, 1977
- Hal Jeayes
- Â Ted Knight 1 episode, 1977
- Diana Weston
- Â Girl in Antique Market 1 episode, 1978
- John Franklyn-Robbins
- Â Superintendent 1 episode, 1978
- Jonathan Elsom
- Â George 1 episode, 1978
- Ken Barker
- Â Screw 1 episode, 1978
- Peter Quince
- Â Stan 1 episode, 1978
- Stephen Greif
- Â Duroy 1 episode, 1977
- James Greene
- Â Det. Insp. Wilson 1 episode, 1977
- Kenneth Waller
- Â Warehouse Transport Manager 1 episode, 1977
- Lala Lloyd
- Â Hostel Warden 1 episode, 1977
- Anthony Heaton
- Â Samson 1 episode, 1977
- Jay Neill
- Â Man in Car 1 episode, 1977
- Norman Hartley
- Â Customs Officer 1 episode, 1977
- Michael Walker
- Â Gerry 1 episode, 1977
- Red Milner
- Â Frank Voss 1 episode, 1977
- Anna Nygh
- Â Girl in Antique Market 1 episode, 1978
- Antony Carrick
- Â Chief Constable 1 episode, 1978
- Helena McCarthy
- Â Mrs. Templeton 1 episode, 1978
- David Telfer
- Â Customs Officer 1 episode, 1978
- Tony Allen
- Â Squad Officer 1 episode, 1978
- Joe Gladwin
- Â Collars 1 episode, 1977
- Bernard Kay
- Â Forensic Officer 1 episode, 1977
- John Rapley
- Â Jeweller 1 episode, 1977
- Paul Humpoletz
- Â 1st Lorry Driver 1 episode, 1977
- Stephen Whittaker
- Â Jack Price 1 episode, 1977
- Alison King
- Â Mrs. Kemp 1 episode, 1977
- Malcolm Ward
- Â Kevin Voss 1 episode, 1977
- Robert Farrant
- Â Kenny 1 episode, 1977
- David Horovitch
- Â PPS 1 episode, 1978
- Ian Cross
- Â Borstal Boy 1 episode, 1978
- Philip Ryan
- Â Security Guard 1 episode, 1978
- Stephen Wright
- Â Dingaling 1 episode, 1978
- William Morgan Sheppard
- Â Barman 1 episode, 1977
- Sheila Dunn
- Â Hospital Sister 1 episode, 1977
- Max Mason
- Â Forensic Detective Sergeant 1 episode, 1977
- Tommy Wright
- Â Uniformed Sergeant 1 episode, 1977
- James Appleby
- Â 2nd Lorry Driver 1 episode, 1977
- Malcolm Hughes
- Â Tim Harris 1 episode, 1977
- Anita Finch
- Â Janet 1 episode, 1977
- John Quayle
- Â Psychologist 1 episode, 1978
- Jillianne Foot
- Â Plenty 1 episode, 1978
- Renee Goddard
- Â Caretaker 1 episode, 1978
- Fran O'Linn
- Â Deputy Manageress 1 episode, 1978
- Geoffrey Leesley
- Â Doctor Warren 1 episode, 1977
- Antony Brown
- Â National Co-Ordinator 1 episode, 1977
- Frank Henson
- Â Eddy 1 episode, 1977
- Arthur Kelly
- Â Drake 1 episode, 1977
- Cynthia Etherington
- Â Secretary 1 episode, 1977
- Eamonn Boyce
- Â Neighbour 1 episode, 1977
- David Mallinson
- Â Police Sergeant 1 episode, 1978
- John F. Parker
- Â Gallery Manager 1 episode, 1978
- John York
- Â CID Man 1 episode, 1978
- Michael Logan
- Â Man in Car 1 episode, 1977
- Nick Hobbs
- Â Truck Driver 1 episode, 1977
- Neil Kennedy
- Â 1st Detective Constable 1 episode, 1977
- David Belcher
- Â Press Reporter 1 episode, 1977
- Elizabeth Norman
- Â Nurse 1 episode, 1977
- Barbara Grant
- Â Hotel Manageress 1 episode, 1977
- Diana Payan
- Â Stenographer 1 episode, 1978
- Reginald Jessup
- Â Mr. Allison 1 episode, 1978
- Graham Padden
- Â CID Man 1 episode, 1978
- Pat Gorman
- Â CID Man 1 episode, 1977
- Nicholas McArdle
- Â Walter 1 episode, 1977
- Dev Sagoo
- Â Yahya 1 episode, 1977
- Alan Haines
- Â 2nd Detective Constable 1 episode, 1977
- Jason Kemp
- Â Companion 1 episode, 1978
- Michael Wolf
- Â Art Dealer 1 episode, 1978
- Jonathan Scott
- Â Mr. Enticott 1 episode, 1978
- Harry Fielder
- Â Detective 1 episode, 1977
- Roy Sampson
- Â Policeman 1 episode, 1977
- Marcel Steiner
- Â Harry Kemp 1 episode, 1977
- Wendy Brierley
- Â Shop Assistant 1 episode, 1977
- Emma Shaw
- Â Girl 1 episode, 1978
- Alan Troy
- Â Barman 1 episode, 1978
- Simon Barry
- Â Bank Teller 1 episode, 1978
- Gordon Reid
- Â Stable Lad 1 episode, 1977
- Harry Saks
- Â Crane Cab Driver 1 episode, 1977
- Ian Hoare
- Â Boy 1 episode, 1978
- Doris Hall
- Â Old Lady 1 episode, 1978
- Christopher Cregan
- Â Paul Wyatt 1 episode, 1978
- Mark Brackenbury
- Â Ship's Captain 1 episode, 1977
- Roy Denton
- Â Old Man 1 episode, 1978
- Peter Macarte
- Â Waiter 1 episode, 1977
- Gee Kee
- Â Hackett's Girl 1 episode, 1978
- Katharine Page
- Â Mrs. Knight 1 episode, 1977
- Leslie Crawford
- Â Carter's Thug 1 episode, 1978
- Steve Emerson
- Â Carter's Thug 1 episode, 1978
- Ronald Lacey
- Â Charlie Walker 1 episode, 1978
- Donald Sumpter
- Â Heslop 1 episode, 1978
- John Nolan
- Â Scott Taylor 1 episode, 1978
- Christopher Ryan
- Â Jock 1 episode, 1978
- Kate Fahy
- Â Carol 1 episode, 1978
- Mark McManus
- Â Wilson 1 episode, 1978
- George Irving
- Â Scott 1 episode, 1978
- Ann Curthoys
- Â Mrs. Aston 1 episode, 1978
- David Sibley
- Â Mick 1 episode, 1978
- David Dixon
- Â Paul Marshall 1 episode, 1978
- David Leland
- Â Murray 1 episode, 1978
- Nigel Williams
- Â Customs Officer 1 episode, 1978
- Mark Jones
- Â Jackie Brent 1 episode, 1978
- Dave King
- Â Raymond Blake 1 episode, 1978
- Cheryl Kennedy
- Â Julie Sommers 1 episode, 1978
- Brian McDermott
- Â Kenneth Venables 1 episode, 1978
- Hilary Ryan
- Â Girlfriend 1 episode, 1978
- Maurice O'Connell
- Â Collyer 1 episode, 1978
- Ben Howard
- Â Oscar Brent 1 episode, 1978
- Peter Dean
- Â Det. Con. George 1 episode, 1978
- James Coyle
- Â Eamon Leary 1 episode, 1978
- Nigel Greaves
- Â Young Man 1 episode, 1978
- Peter Hill
- Â Booking Clerk 1 episode, 1978
- Julian Fox
- Â Brian Aston 1 episode, 1978
- Barrie Cookson
- Â Partridge 1 episode, 1978
- Elin Jenkins
- Â Trish Walker 1 episode, 1978
- Juanita Smith
- Â Aston's Daughter 1 episode, 1978
- John Blain
- Â Sir Donald 1 episode, 1978
- Esmond Webb
- Â Shop Owner 1 episode, 1978
- Michael Newton
- Â Aston's Son 1 episode, 1978
- Dave Cooper
- Â Lorry Driver (uncredited) 1 episode, 1977
- Charlie Molton
- Â Extra (uncredited) 1 episode, 1977
- Ricky Diamond
- Â Street Thug (uncredited) 1 episode, 1978
