- Derren Nesbitt
- Â Det. Chief Insp. Jordan 27 episodes, 1969-1970
- George Sewell
- Â Detective Chief Inspector Alan Craven / ... 26 episodes, 1973-1974
- Morris Perry
- Â Charles Moxon 21 episodes, 1969-1970
- Fulton Mackay
- Â Det. Chief Supt. Inman / ... 18 episodes, 1969-1970
- Patrick Mower
- Â Detective Chief Inspector Tom Haggerty / ... 16 episodes, 1973-1974
- Roger Rowland
- Â Detective Sergeant Bill North / ... 15 episodes, 1969-1974
- Keith Washington
- Â Det. Con. Morrissey / ... 14 episodes, 1969-1970
- Paul Eddington
- Â Strand 11 episodes, 1974
- Wensley Pithey
- Â Det. Supt. Eden / ... 9 episodes, 1969
- Frederick Jaeger
- Â Commander Fletcher / ... 9 episodes, 1970-1974
- Sheila Scott Wilkinson
- Â Pam Sloane 7 episodes, 1973
- David Garth
- Â Deputy Commander 7 episodes, 1969-1970
- Paul Antrim
- Â Detective Sgt. Maguire / ... 7 episodes, 1974
- Jennifer Wilson
- Â Det. Sgt. Helen Webb / ... 6 episodes, 1969
- Sandra Bryant
- Â Christine Morris 6 episodes, 1969-1970
- Susan Jameson
- Â Detective Sgt. Mary Holmes 4 episodes, 1974
- Anne Rutter
- Â Det. Con. Jane Simpson / ... 4 episodes, 1970
- John Bailey
- Â Bauer / ... 3 episodes, 1969-1973
- Richard Butler
- Â Commander Nicholls / ... 3 episodes, 1973
- Richard Leech
- Â Commander Knight / ... 3 episodes, 1973
- Claire Nielson
- Â Charlotte / ... 3 episodes, 1969-1974
- Arnold Diamond
- Â Charles Settle / ... 3 episodes, 1969-1974
- Geoffrey Bayldon
- Â Alex Rushmer / ... 2 episodes, 1969-1973
- Richard Beale
- Â Commander Glover 2 episodes, 1974
- Damien Thomas
- Â Alex Leonides / ... 2 episodes, 1969-1974
- Tamara Hinchco
- Â Katina Kalergaropolous / ... 2 episodes, 1969-1973
- Nicola Pagett
- Â Lydia Tamarova / ... 2 episodes, 1969-1970
- Clifford Rose
- Â Proudie / ... 2 episodes, 1970-1973
- Brian Haines
- Â Leonid Rubin / ... 2 episodes, 1970-1973
- Doreen Mantle
- Â Miss Mitchell / ... 2 episodes, 1969-1973
- George Pravda
- Â Bershki / ... 2 episodes, 1969-1973
- Gary Watson
- Â Bilak / ... 2 episodes, 1969-1970
- Daniel Moynihan
- Â Ed Potter / ... 2 episodes, 1969-1970
- Milos Kirek
- Â Embassy Official / ... 2 episodes, 1970-1973
- Bill Horsley
- Â Branch / ... 2 episodes, 1969-1970
- Kenneth Watson
- Â Detective Inspector / ... 2 episodes, 1970-1974
- Brian Wilde
- Â Alan Pritchard / ... 2 episodes, 1970-1973
- Harold Kasket
- Â Psychiatrist / ... 2 episodes, 1969-1973
- Monica Vasileiou
- Â Loukia Kazakos / ... 2 episodes, 1969-1970
- Donald Pelmear
- Â Cowley / ... 2 episodes, 1969
- Billy Milton
- Â Jeweller / ... 2 episodes, 1969-1973
- Ray Barron
- Â 2nd Radio Operator / ... 2 episodes, 1969-1970
- Keith Anderson
- Â Manning 2 episodes, 1973
- Geoffrey Lumsden
- Â Appeal Chairman / ... 2 episodes, 1969-1974
- Tony Caunter
- Â Det. Sgt. Clark / ... 2 episodes, 1969-1970
- Bruce Boa
- Â Evans / ... 2 episodes, 1970-1974
- Stephen Greif
- Â Finch / ... 2 episodes, 1970-1974
- Neal Arden
- Â Sgt. Operator 2 episodes, 1973
- Sandra Hale
- Â Girl in Pub / ... 2 episodes, 1974
- Arnold Peters
- Â Giraud / ... 2 episodes, 1969-1974
- Aubrey Richards
- Â Captain Tait / ... 2 episodes, 1969-1973
- Ronald Magill
- Â Mr. Herridge / ... 2 episodes, 1969-1970
- Artro Morris
- Â Archivist / ... 2 episodes, 1973
- Richard McNeff
- Â 1st Radio Operator / ... 2 episodes, 1969-1970
- William Marlowe
- Â CID Detective Inspector / ... 2 episodes, 1974
- Richard Pescud
- Â Communications Expert 2 episodes, 1973-1974
- Charles Pemberton
- Â Policeman / ... 2 episodes, 1973-1974
- Rod Beacham
- Â Drunk 2 episodes, 1973-1974
- Jon Croft
- Â Corrigan / ... 2 episodes, 1969-1974
- Susanna Hunt
- Â Craven's Secretary / ... 2 episodes, 1974
- David Joyce
- Â Czech Diplomat / ... 1 episode, 1969-1970
- Georgina Hale
- Â Lisa 1 episode, 1970
- Annette Crosbie
- Â Sarah Lovett 1 episode, 1973
- Peter Jeffrey
- Â Pettiford 1 episode, 1973
- Norman Jones
- Â Captain Dwyer 1 episode, 1973
- Michael Latimer
- Â David 1 episode, 1973
- Anthony Nicholls
- Â Colonel Lang 1 episode, 1974
- Hilary Heath
- Â Sarah Landring 1 episode, 1969
- Dino Shafeek
- Â Majid 1 episode, 1969
- James Cossins
- Â Det. Sgt. Davis 1 episode, 1970
- Michael Goodliffe
- Â Gillard 1 episode, 1970
- David Langton
- Â Edward Kirk 1 episode, 1970
- Paul Stassino
- Â Emil Kazakos 1 episode, 1970
- William Lucas
- Â Dr. Clifford 1 episode, 1970
- Davyd Harries
- Â Det. Sgt. Sherman 1 episode, 1970
- Kevin Stoney
- Â Drysdale 1 episode, 1970
- Jasmina Hilton
- Â Farida Gemal 1 episode, 1970
- Miranda Connell
- Â Angela Ballie 1 episode, 1970
- Roger Lloyd Pack
- Â Paul 1 episode, 1973
- Richard Marner
- Â Wednicki 1 episode, 1973
- Ursula Howells
- Â Mrs. Sumner 1 episode, 1973
- Jack Hedley
- Â Hon. James Bancroft 1 episode, 1973
- Ann Lynn
- Â Frau Muller 1 episode, 1973
- Gwen Watford
- Â Mrs. Dolland 1 episode, 1973
- Kenneth J. Warren
- Â Coatzee 1 episode, 1973
- Mary Maude
- Â Clare 1 episode, 1973
- Roger Hume
- Â Dr. Ted Lovett 1 episode, 1973
- Walter Gotell
- Â Morales 1 episode, 1974
- John Carson
- Â Phillip Weston 1 episode, 1974
- Cyd Hayman
- Â Nadya Chelnov 1 episode, 1974
- Garfield Morgan
- Â Major Hallett 1 episode, 1974
- Mel Martin
- Â Barbara Cartwright 1 episode, 1969
- Barbara Leigh-Hunt
- Â Mira Kobylnova 1 episode, 1969
- Sheila Fearn
- Â Det. Sgt. Sarah Gifford 1 episode, 1969
- John Franklyn-Robbins
- Â Desmond Whittaker 1 episode, 1969
- Patricia Lawrence
- Â Elena Brovnik 1 episode, 1969
- Salmaan Peerzada
- Â Omar Ben Ahlil 1 episode, 1969
- Alan Browning
- Â Kamarov 1 episode, 1969
- Peter Arne
- Â Anatoli Golovin 1 episode, 1970
- Yutte Stensgaard
- Â Nina Saretna 1 episode, 1970
- Rachel Herbert
- Â Ilena Petrova 1 episode, 1970
- Basil Dignam
- Â Colonel Harkstead 1 episode, 1970
- Pauline Letts
- Â Mary Kirk 1 episode, 1970
- Sheila Raynor
- Â Elsie Davis 1 episode, 1970
- Georgina Simpson
- Â Ginny 1 episode, 1970
- Alethea Charlton
- Â Brenda Clifford 1 episode, 1970
- Ingrid Hafner
- Â Miss Tully 1 episode, 1970
- Wendy Gifford
- Â Sarah 1 episode, 1970
- Dermot Tuohy
- Â Costello 1 episode, 1970
- Michael Gambon
- Â Herr Muller 1 episode, 1973
- Stephanie Beacham
- Â Sue Arden 1 episode, 1973
- Diana Quick
- Â Sarah 1 episode, 1973
- Alan Downer
- Â Shepherd 1 episode, 1973
- Arne Gordon
- Â Wildebrand 1 episode, 1973
- Jacqueline Pearce
- Â Helga Moritz 1 episode, 1974
- Ann Firbank
- Â Gisela Hellman 1 episode, 1974
- Geoffrey Chater
- Â Sir Gerald Pastor 1 episode, 1974
- Gabriella Licudi
- Â Lena Drummond 1 episode, 1974
- Godfrey James
- Â Sergeant Crockett 1 episode, 1974
- Ronald Radd
- Â Leonard Gosling 1 episode, 1974
- Dora Reisser
- Â Claudia 1 episode, 1974
- Stanley Meadows
- Â Max Levinson 1 episode, 1974
- Colette O'Neil
- Â Rose Filmer 1 episode, 1974
- Nicolette McKenzie
- Â Beth Summers 1 episode, 1974
- Maxwell Shaw
- Â Hodges 1 episode, 1974
- Tony Britton
- Â Clive Bradbury 1 episode, 1969
- Jack Shepherd
- Â Peter Watson 1 episode, 1969
- Georgine Anderson
- Â Mrs. Bishop 1 episode, 1969
- Anthony Sagar
- Â Det. Chief Insp. Matt Harris 1 episode, 1969
- Ray Smith
- Â Det. Chief Insp. Jeffries 1 episode, 1969
- Martin Wyldeck
- Â Spaak 1 episode, 1969
- John Robinson
- Â Dr. Foster Hamilton 1 episode, 1969
- John Bennett
- Â Costas Petrides 1 episode, 1970
- Bryan Marshall
- Â Sullivan 1 episode, 1970
- Richard Davies
- Â Insp. Williams 1 episode, 1970
- Murray Hayne
- Â M.C. 1 episode, 1970
- Emrys Jones
- Â Falcon 1 episode, 1970
- André Morell
- Â Scabrienski 1 episode, 1973
- Tony Selby
- Â Ridley 1 episode, 1973
- Frank Barrie
- Â McCall 1 episode, 1973
- Renee Houston
- Â Scotswoman 1 episode, 1973
- Billy Hamon
- Â Chris 1 episode, 1973
- John Arnatt
- Â Denning 1 episode, 1973
- Bob Keegan
- Â Mr. Haggerty Snr. 1 episode, 1973
- Patrick Fyffe
- Â Frank 1 episode, 1973
- Bloke Modisane
- Â Mbeya 1 episode, 1973
- Karen Stark
- Â Hilda Muller 1 episode, 1973
- Stuart Wilson
- Â Steven Gill 1 episode, 1974
- Dennis Waterman
- Â Frank Gosling 1 episode, 1974
- Peter Bowles
- Â Igor 1 episode, 1974
- Rula Lenska
- Â Lydia 1 episode, 1974
- Keith Buckley
- Â Martin Kingswood 1 episode, 1974
- Tony Beckley
- Â Helmut Rehfuss 1 episode, 1974
- George Murcell
- Â Jean-Paul Rostand 1 episode, 1974
- Paul Shelley
- Â Palliser 1 episode, 1974
- John Cairney
- Â Lister 1 episode, 1974
- Patrick Duggan
- Â Paddy Regan 1 episode, 1974
- Maurice Good
- Â Charlie Brewer 1 episode, 1969
- Howard Goorney
- Â Duncan Ross 1 episode, 1969
- Kenneth Gilbert
- Â Det. Sergeant Rowney 1 episode, 1969
- Ian Gardiner
- Â Hotel Receptionist 1 episode, 1969
- Gabrielle Drake
- Â Karolina Novakova 1 episode, 1970
- Richard Durden
- Â Peters 1 episode, 1970
- Ania Marson
- Â Karin 1 episode, 1970
- Constantine Gregory
- Â Scace 1 episode, 1970
- Simon Lack
- Â Christopher Haddon 1 episode, 1970
- Barbara Keogh
- Â Chaperone 1 episode, 1970
- John Boxer
- Â Inspector Dunwell 1 episode, 1970
- Nadia Cattouse
- Â Mrs. Kaino 1 episode, 1970
- Alister Williamson
- Â Det. Sgt. Miller 1 episode, 1970
- Barry Jackson
- Â Workman 1 episode, 1973
- Richard Vernon
- Â Townsend 1 episode, 1973
- Alex Scott
- Â Graham 1 episode, 1973
- Hilda Barry
- Â Mrs. McCafferty 1 episode, 1973
- Beth Harris
- Â Andrea Watkins 1 episode, 1973
- Clement McCallin
- Â Overton 1 episode, 1973
- Jumoke Debayo
- Â Sheila Fenner 1 episode, 1973
- Douglas Milvain
- Â Parker 1 episode, 1973
- Janet Key
- Â Carla 1 episode, 1974
- Denis Lill
- Â Tim Summers 1 episode, 1974
- John Bindon
- Â Harry Beauchamp 1 episode, 1974
- Terence Bayler
- Â Security Man 1 episode, 1974
- Suzanne Roquette
- Â Heidi Schneider 1 episode, 1974
- Al Mancini
- Â Le Fevre 1 episode, 1974
- Olaf Pooley
- Â Eastry Senior 1 episode, 1974
- Ray Mort
- Â Ron Murray 1 episode, 1974
- Richard Cornish
- Â The Young Lang 1 episode, 1974
- Ivan Beavis
- Â Bannister 1 episode, 1974
- Susan Tebbs
- Â Dr. Barbara Latimer 1 episode, 1974
- Peter John
- Â Pugh 1 episode, 1974
- David Collings
- Â Newspaper Editor 1 episode, 1969
- Clive Merrison
- Â PC Evans 1 episode, 1969
- Mary Healey
- Â Rosa 1 episode, 1969
- Edina Ronay
- Â Sonia Gibbs 1 episode, 1969
- Gerald Sim
- Â Douglas Lifford 1 episode, 1969
- Tommy Godfrey
- Â Mr. Harris 1 episode, 1969
- Alec Ross
- Â Reddon 1 episode, 1969
- Hamilton Dyce
- Â Dr. Cisar 1 episode, 1969
- Michael Beint
- Â Det. Sergeant Madgwick 1 episode, 1969
- Edward Atienza
- Â Q.C. 1 episode, 1969
- Wilfred Downing
- Â Jimmy Cole 1 episode, 1969
- Raymond Westwell
- Â Sholov 1 episode, 1969
- David Hargreaves
- Â Richter 1 episode, 1970
- Mona Hammond
- Â Veronica Williams 1 episode, 1970
- Ann Curthoys
- Â Alyson 1 episode, 1970
- Jack Carr
- Â Det. Sgt. Cutler 1 episode, 1970
- Derek Murcott
- Â U. S. Air Force Colonel 1 episode, 1970
- Alfred Bell
- Â Det. Sgt. Mills 1 episode, 1970
- Hayden Jones
- Â Sephton 1 episode, 1970
- John Richmond
- Â Robert 1 episode, 1970
- Maureen Davis
- Â Gillian Heyman 1 episode, 1970
- Dennis Thorne
- Â Deputy Commander 1 episode, 1970
- Leon Eagles
- Â Borotchek 1 episode, 1973
- David Weston
- Â Wilson 1 episode, 1973
- Louis Mahoney
- Â Jalobe - South African Freedom Representative 1 episode, 1973
- Robert James
- Â Griffiths 1 episode, 1973
- Donald Webster
- Â Kesky 1 episode, 1973
- Seymour Green
- Â Bank Manager 1 episode, 1973
- Patrick Connor
- Â Corrigan 1 episode, 1973
- Ruby Head
- Â Matron 1 episode, 1973
- John Plume
- Â Bernard Phillips 1 episode, 1973
- Patrick Troughton
- Â Professor Frederick Denny 1 episode, 1974
- Barbara Kellerman
- Â Michelle 1 episode, 1974
- Michael Sheard
- Â Adrian Penfold 1 episode, 1974
- Patricia Haines
- Â Mrs. Lane 1 episode, 1974
- Heather Page
- Â Anna Maslyn 1 episode, 1974
- Stephanie Turner
- Â Jean Gosling 1 episode, 1974
- Peter Halliday
- Â Edward 1 episode, 1974
- Seretta Wilson
- Â Milly 1 episode, 1974
- Keith Marsh
- Â Head Waiter 1 episode, 1974
- Barry Keegan
- Â Horniman 1 episode, 1974
- Myrtill Nádasi
- Â Bridget Farwater / ... 1 episode, 1974
- Peter Needham
- Â Detective Sergeant 1 episode, 1974
- Michael Da Costa
- Â Tony Compson 1 episode, 1974
- Andy Bradford
- Â Peter Harris 1 episode, 1969
- Michael Keating
- Â Det. Constable Pearce 1 episode, 1969
- Anna Turner
- Â Mrs. Cole 1 episode, 1969
- Edward Burnham
- Â Professor Crowther 1 episode, 1969
- Gillian Hawser
- Â Beryl 1 episode, 1969
- Harry Meacher
- Â Hippie Man 1 episode, 1969
- Peggy Marshall
- Â Mrs. Zoe Foster Hamilton 1 episode, 1969
- Anthony Baird
- Â Police Sergeant 1 episode, 1969
- Anthony Dawes
- Â Warmby 1 episode, 1969
- Robert Hamilton
- Â Zac 1 episode, 1969
- Norman Claridge
- Â Chairman 1 episode, 1969
- Alan Haines
- Â Harper 1 episode, 1969
- Nellie Hanham
- Â Mrs. Harris 1 episode, 1969
- Sheila Ruskin
- Â Sheila Franklyn 1 episode, 1970
- Hugh Futcher
- Â Cotterill 1 episode, 1970
- Geoffrey Russell
- Â Erich Erhardt 1 episode, 1970
- Simon Gough
- Â Dishman 1 episode, 1970
- Robert Aldous
- Â Brian Daniels 1 episode, 1970
- Ronald Russell
- Â Sir Hugh Lodge 1 episode, 1970
- Joan Peart
- Â Lady Customer 1 episode, 1970
- Robin Wentworth
- Â Det. Sgt. Donovan 1 episode, 1970
- Rona Bower
- Â Miss Amsterdam 1 episode, 1970
- Patrick Jordan
- Â Customs Official 1 episode, 1973
- James Bree
- Â Ray Beckett 1 episode, 1973
- Leo Dolan
- Â Cabby 1 episode, 1973
- Tim Barrett
- Â Grindley 1 episode, 1973
- Jean Harvey
- Â Mrs. Curzon-Smith 1 episode, 1973
- George Moon
- Â Proprietor 1 episode, 1973
- Rita Merkelis
- Â Eva 1 episode, 1973
- Sara Aimson
- Â Rosemary Brown 1 episode, 1973
- June Brown
- Â Chrissy 1 episode, 1974
- Gareth Thomas
- Â Steve Ryman 1 episode, 1974
- Christopher Benjamin
- Â Dr. Eric Blyth 1 episode, 1974
- Peter Miles
- Â Rodriguez 1 episode, 1974
- Katya Wyeth
- Â Susanne Brodl 1 episode, 1974
- Clive Morton
- Â Attorney General 1 episode, 1974
- Lucy Appleby
- Â Margaret Cope 1 episode, 1974
- Peter Cleall
- Â Stuart Barnes 1 episode, 1974
- Peter Sproule
- Â Police Constable 1 episode, 1974
- Richard Steele
- Â Davies 1 episode, 1974
- Tommy Eytle
- Â General Yqueras 1 episode, 1974
- Windsor Davies
- Â Vousden 1 episode, 1969
- Tom Chadbon
- Â Sean 1 episode, 1969
- John Abineri
- Â Comber 1 episode, 1969
- Pamela Miles
- Â Hippie Woman 1 episode, 1969
- Donald Bisset
- Â Colonel 1 episode, 1969
- John Bryans
- Â Jimmy Ansell 1 episode, 1969
- Andree Evans
- Â Mrs. Cowley 1 episode, 1969
- Andrew Laurence
- Â Wrecks Assessor 1 episode, 1969
- Marcella Saint-Amant
-  Françoise 1 episode, 1969
- Harry Tardios
- Â Mr. Kalergaropolous 1 episode, 1969
- Athene Fielding
- Â Mabel 1 episode, 1969
- John Woodnutt
- Â Major Carter 1 episode, 1970
- Gabrielle Blunt
- Â Mrs. Young 1 episode, 1970
- Marc Boyle
- Â Devereaux 1 episode, 1970
- John Rolfe
- Â Selby 1 episode, 1970
- Colin Rix
- Â Det. Sgt. Pritchard 1 episode, 1970
- Roger Kemp
- Â Peter Simmons 1 episode, 1970
- Denis Goacher
- Â Schaeffer 1 episode, 1970
- William Abney
- Â Det. Chief Insp. Baynes 1 episode, 1970
- John Graham
- Â Doctor 1 episode, 1970
- Paul Starr
- Â No. 1 Interrogator 1 episode, 1970
- Lane Meddick
- Â Hall Porter 1 episode, 1970
- Patrick McAlinney
- Â Father McMahon 1 episode, 1973
- Jennifer Piercey
- Â Landlady 1 episode, 1973
- Tony Thawnton
- Â Man in Phone Booth 1 episode, 1973
- Maria O'Brien
- Â Helen 1 episode, 1973
- Pete Brady
- Â TV Reporter 1 episode, 1973
- Peter Marshall
- Â Schoolboy 1 episode, 1973
- Peter Blythe
- Â Fountain 1 episode, 1974
- Charles Morgan
- Â News Editor 1 episode, 1974
- Gillian Rhind
- Â Girl Archivist 1 episode, 1974
- Ralph Watson
- Â Detective in Car 1 episode, 1974
- Edwin Apps
- Â Major Philip Erskine 1 episode, 1974
- Antony Webb
- Â Irving Shannon 1 episode, 1974
- Timothy Morand
- Â Claude 1 episode, 1974
- Sheila Brownrigg
- Â Mrs. Hallett 1 episode, 1974
- Neville Aurelius
- Â Malcolm Yqueras 1 episode, 1974
- Amanda Knott
- Â Sylvie Roche 1 episode, 1974
- Antony Brown
- Â Dyson 1 episode, 1969
- Robert Mill
- Â Stroud 1 episode, 1969
- Larry Cross
- Â Mr. Graham 1 episode, 1969
- Malya Nappi
- Â Mrs. Kalergaropolous 1 episode, 1969
- George Lee
- Â Clayton 1 episode, 1969
- Hugh Morton
- Â Store Manager 1 episode, 1969
- Jean Aubrey
- Â Sally 1 episode, 1969
- Julian Herington
- Â Arthur Prendergast 1 episode, 1969
- Helena Ross
- Â Mary Pearce 1 episode, 1969
- Jane Hilary
- Â Secretary 1 episode, 1969
- Alan Adams
- Â Johnny 1 episode, 1969
- Donald Layne-Smith
- Â Coroner 1 episode, 1969
- David Graham
- Â No. 2 Interrogator 1 episode, 1970
- James Marcus
- Â L.A.C. Higgs 1 episode, 1970
- Leon Lissek
- Â Hoffman 1 episode, 1970
- John Moore
- Â Yachtsman 1 episode, 1970
- John Kidd
- Â Managing Director 1 episode, 1970
- Barbara Bolton
- Â Shop Assistant 1 episode, 1970
- Pamela Greenall
- Â Mrs. Ellis 1 episode, 1970
- Otto Diamant
- Â Einhof 1 episode, 1970
- Denis DeMarne
- Â Plainclothes Man 1 episode, 1970
- Ron Hickey
- Â Kilyagin 1 episode, 1970
- Tony Haygarth
- Â Monty 1 episode, 1973
- Ron Pember
- Â Charlie King 1 episode, 1973
- James Grant
- Â Detective Constable Imrie 1 episode, 1973
- John Gregg
- Â Sergeant Ramsay 1 episode, 1973
- Trevor Martin
- Â Bomb Disposal Officer 1 episode, 1973
- Robert Robinson
- Â Crisp 1 episode, 1973
- Zara Daley
- Â Schoolgirl 1 episode, 1973
- Peter Cellier
- Â Sir Terence Gabon 1 episode, 1974
- Paul Williamson
- Â Bomb Expert 1 episode, 1974
- Barrie Cookson
- Â Lemner 1 episode, 1974
- Margery Withers
- Â Mrs. Miles 1 episode, 1974
- Robert Tayman
- Â Chris Correy 1 episode, 1974
- David Webb
- Â S.S. Officer 1 episode, 1974
- Neville Barber
- Â Stanley Mace 1 episode, 1974
- Bernard Taylor
- Â Captain Dwyer 1 episode, 1974
- Wendy Seely
- Â Maggie 1 episode, 1974
- Shusha Assar
- Â Cabaret Singer 1 episode, 1974
- Paul Darrow
- Â Lawyer 1 episode, 1969
- Arnold Ridley
- Â Mr. Turner 1 episode, 1969
- John Donovan
- Â Scotland Yard Telephonist 1 episode, 1969
- Peter Beton
- Â Ian Martin 1 episode, 1969
- Mark Elwes
- Â Major Sandwich 1 episode, 1969
- Lindsay Campbell
- Â Colonel Dysart 1 episode, 1969
- Usha Joshi
- Â Dr. Bakht 1 episode, 1969
- Alexis Chesnakov
- Â Mr. Kraminsky 1 episode, 1969
- Joan Ogden
- Â Editor's Secretary 1 episode, 1969
- John Cobner
- Â Det. Constable Brewer 1 episode, 1969
- Andreas Lysandrou
- Â Steve Batanides 1 episode, 1969
- Arthur Cox
- Â Reception Clerk 1 episode, 1970
- Richard Simpson
- Â Group Captain 1 episode, 1970
- Michael Lynch
- Â Sgt. Edwards 1 episode, 1970
- Colin Cunningham
- Â The Carver 1 episode, 1970
- Ronald Govey
- Â Mr. Ellis 1 episode, 1970
- Paul Prescott
- Â Radio Shop Youth 1 episode, 1970
- John Berryman
- Â Morris 1 episode, 1970
- Bernard Archard
- Â Ministry Official 1 episode, 1973
- Mark Eden
- Â Journalist 1 episode, 1973
- Edward Jewesbury
- Â Prison Governor 1 episode, 1973
- John Clive
- Â Whacker 1 episode, 1974
- Neil Hallett
- Â Duvalier 1 episode, 1974
- John Quentin
- Â Eastry 1 episode, 1974
- Lynn Dalby
- Â Carole Murray 1 episode, 1974
- John Gill
- Â Sugar Daddy 1 episode, 1974
- Margaret Anderson
- Â Mrs. Robert Miles 1 episode, 1974
- Claire Shenstone
- Â Rena Del Orte 1 episode, 1974
- Jonathan Blake
- Â Paul Velasquez 1 episode, 1974
- William Redmond
- Â French Colonel 1 episode, 1974
- Tommy Osborne
- Â Drag Compere 1 episode, 1974
- Bruce Taylor
- Â Sir Miles Daventry 1 episode, 1974
- John Levene
- Â Special Branch Man 1 episode, 1969
- Leon Collins
- Â Levi 1 episode, 1969
- Carmen Dene
- Â Woman 1 episode, 1969
- Ros Drinkwater
- Â Woman Det. Constable 1 episode, 1969
- Donal Cox
- Â Corporal Doyle 1 episode, 1969
- Janet Burnell
- Â Woman Prison Governor 1 episode, 1969
- Etain O'Dell
- Â Policewoman 1 episode, 1969
- Louise Hasler
- Â Ingemar Hedin 1 episode, 1969
- Anthony King
- Â Somerset House Clerk 1 episode, 1969
- Sarah Thomas
- Â Au Pair Girl 1 episode, 1970
- Michael Goldie
- Â Pike 1 episode, 1970
- Louis Haslar
- Â Hotel Manager 1 episode, 1970
- Jan Conrad
- Â Chesnikov 1 episode, 1970
- Michael Culver
- Â Health Inspector 1 episode, 1973
- Roger Avon
- Â Receptionist 1 episode, 1973
- Neville Hughes
- Â Pursuer 1 episode, 1973
- Rosemarie Reede
- Â Marianne 1 episode, 1973
- Valerie Leon
- Â Juanita Wayne 1 episode, 1974
- Donald Eccles
- Â Bishop Garnett-Templeton 1 episode, 1974
- Eric Mason
- Â Steve 1 episode, 1974
- John Carlin
- Â Hotel Manager 1 episode, 1974
- Patsy Peters
- Â Night Club Singer 1 episode, 1974
- Frances Tomelty
- Â Student 1 episode, 1969
- Cheryl Hall
- Â Blonde Girl 1 episode, 1969
- Edward Clayton
- Â Det. Sergeant 1 episode, 1969
- Peter Thornton
- Â Newsreel Man 1 episode, 1969
- Mohammad Shamsi
- Â Arab Aide 1 episode, 1969
- Pamela Coveney
- Â American Girl 1 episode, 1969
- Robert Webber
- Â Mr. Snell 1 episode, 1969
- Anton Darby
- Â Reporter 1 episode, 1969
- Angela East
- Â Cellist 1 episode, 1969
- David Jackson
- Â Chapman 1 episode, 1970
- Ken Barker
- Â Porter 1 episode, 1970
- Alfred Hoffman
- Â Waiter 1 episode, 1970
- Julie Booth
- Â Lynne Davis 1 episode, 1970
- Joseph O'Connell
- Â Moxon's Man 1 episode, 1970
- Ronald Leigh-Hunt
- Â Instructor 1 episode, 1973
- Angus MacKay
- Â Club Secretary 1 episode, 1973
- Diana Rayworth
- Â Bookshop Proprietor 1 episode, 1973
- Walter Sparrow
- Â Sprague 1 episode, 1974
- Hal Galili
- Â R.C.M.P. Sergeant 1 episode, 1974
- Gillian Raine
- Â Woman Chief Inspector Carter 1 episode, 1974
- Jonathan Elsom
- Â Koniev 1 episode, 1974
- Christopher Banks
- Â Vicar 1 episode, 1974
- Brenda Cowling
- Â Mrs. Madgwick 1 episode, 1969
- John Dunbar
- Â Foreman Of Jury 1 episode, 1969
- Susan Denny
- Â Woman Observer 1 episode, 1969
- Yvonne Paul
- Â Student 1 episode, 1969
- Lynne White
- Â Hysterical Girl 1 episode, 1969
- Margot Field
- Â 2nd Policewoman 1 episode, 1969
- Pamela Sholto
- Â Miss Walsh 1 episode, 1969
- Michael Reeves
- Â Pianist 1 episode, 1969
- Harold Reese
- Â Clarke 1 episode, 1969
- Carol Haddon
- Â Helga 1 episode, 1970
- Garth Watkins
- Â Rockliff 1 episode, 1970
- Nadim Sawalha
- Â Terrorist 1 episode, 1973
- Leslie Schofield
- Â Police Car Driver 1 episode, 1973
- Michael Godfrey
- Â Envoy 1 episode, 1973
- Julie Martin
- Â Hotel Receptionist 1 episode, 1973
- Kenneth Colley
- Â Oliver 1 episode, 1974
- Antony Carrick
- Â Doctor 1 episode, 1974
- Bruce Bould
- Â Technician 1 episode, 1974
- Susan Richards
- Â Mrs. Ryman 1 episode, 1974
- Jack Lambert
- Â John Miller 1 episode, 1974
- Charles Farrell
- Â Harry 1 episode, 1974
- Alec Linstead
- Â Jessop 1 episode, 1974
- David Simeon
- Â Student 1 episode, 1969
- Zuleika Robson
- Â Sheila Madgwick 1 episode, 1969
- Heather Emmanuel
- Â Cult Member 1 episode, 1969
- Ivor Danvers
- Â Man Observer 1 episode, 1969
- Lionel Wheeler
- Â Prison Officer 1 episode, 1969
- Keith Taylor
- Â Sauna Attendant 1 episode, 1969
- Sheree Joseph
- Â Annette 1 episode, 1973
- Tim Wylton
- Â Hotel Porter 1 episode, 1974
- Fredric Abbott
- Â Chief Prison Officer 1 episode, 1974
- Michael Forrest
- Â Charles 1 episode, 1974
- Michael Guest
- Â TV Reporter 1 episode, 1974
- Tarn Harper
- Â Sarah Lane 1 episode, 1974
- Julie Anderson
- Â Teresa 1 episode, 1974
- Heather Barbour
- Â Girl at Party 1 episode, 1974
- Tony Rohr
- Â Student 1 episode, 1969
- Joseph Morris
- Â Detective 1 episode, 1969
- John Livesey
- Â Harry 1 episode, 1969
- John Newman
- Â Cult Member 1 episode, 1969
- Jonathan Adams
- Â Duty Officer 1 episode, 1974
- Vicki Hodge
- Â Angelina Peto 1 episode, 1974
- Simon Henderson
- Â Mark Lane 1 episode, 1974
- Vi Delmar
- Â Lady in Pub 1 episode, 1974
- Simon Sharrock
- Â Simon 1 episode, 1974
- Andreas Markos
- Â Greek Priest 1 episode, 1969
- Anthony Colby
- Â 1st Detective 1 episode, 1969
- Roger Tolliday
- Â John Newman 1 episode, 1969
- Cyril Appleton
- Â Sergeant Henderson 1 episode, 1974
- Dave Carter
- Â Minibus Driver 1 episode, 1974
- Alan Stuart
- Â Connors 1 episode, 1974
- Nigel Clayton
- Â Police Constable 1 episode, 1969
- Tony Moore
- Â 2nd Detective 1 episode, 1969
- Doremy Vernon
- Â Glover's Secretary 1 episode, 1974
- Frederick Bennett
- Â George 1 episode, 1974
- Joan Hooley
- Â Indian Lady 1 episode, 1969
- Peter Lund
- Â Night Watchman 1 episode, 1969
- Keith James
- Â Vehicle Forensic Expert 1 episode, 1973
- Graeme Eton
- Â French Secret Service Man 1 episode, 1974
- Robert Wilde
- Â Policeman 1 episode, 1969
- Michael Harding
- Â Postman 1 episode, 1969
- Gene Sandys
- Â Mr. Greenaway 1 episode, 1969
- Roland Pargeter
- Â Boy In Barber's Shop 1 episode, 1969
- William Ellis
- Â Reporter 1 episode, 1973
- Cherell Vernem
- Â Go Go Dancer 1 episode, 1974
- Brian Ellis
- Â Immigration Officer 1 episode, 1969
- Michael Zorba
- Â Cypriot Official 1 episode, 1969
- Alan Helm
- Â Roadsweeper 1 episode, 1973
- Angela Ellis
- Â Det. Constable Brooks 1 episode, 1969
- John Hartley
- Â Reporter 1 episode, 1973
- John Wilder
- Â Det. Chief Insp. Whitney 1 episode, 1969
- Elisabeth Sladen
- Â Policewoman 1 episode, 1973
- Peter Laird
- Â Reporter 1 episode, 1973
- Chris Webb
- Â Flight Sergeant 1 episode, 1970
- Terence Conoley
- Â Enquiry Panel Member / ... (uncredited) 2 episodes, 1969
- Lewis Alexander
- Â Gentleman's Club Member / ... (uncredited) 2 episodes, 1973-1974
- Reg Thomason
- Â Man in Pub / ... (uncredited) 2 episodes, 1973
- Alan Harris
- Â Policeman (uncredited) 1 episode, 1970
- Julie Crosthwaite
- Â Miss Pisa (uncredited) 1 episode, 1970
- Monika Dietrich
- Â Miss Dortmund (uncredited) 1 episode, 1970
- Melita Clarke
- Â Miss Johannesburg (uncredited) 1 episode, 1970
- Kubi Chaza
- Â Miss Rio (uncredited) 1 episode, 1970
- Alan Meacham
- Â Policeman (uncredited) 1 episode, 1970
- Gordon Stothard
- Â Bouncer (uncredited) 1 episode, 1970
- Jay Neill
- Â Policeman (uncredited) 1 episode, 1970
- Peter Kodak
- Â Policeman (uncredited) 1 episode, 1970
- Jack Le White
- Â Court Usher (uncredited) 1 episode, 1970
- Michael Earl
- Â Bert (uncredited) 1 episode, 1970
- Virginia Rhodes
- Â Miss Tallahassee (uncredited) 1 episode, 1970
- Karen Young
- Â Miss Acapulco (uncredited) 1 episode, 1970
- Ronnie Laughlin
- Â Policeman (uncredited) 1 episode, 1970
- Aline Stobbs
- Â Miss Toronto (uncredited) 1 episode, 1970
- Nikel Gower
- Â Policeman (uncredited) 1 episode, 1970
- Adelaide Necheke
- Â Coloured Waitress (uncredited) 1 episode, 1970
- Raoul Skinner
- Â Policeman (uncredited) 1 episode, 1970
- Ann Jay
- Â Molly (uncredited) 1 episode, 1970
- Edward Sinclair
- Â Man in street (uncredited) 1 episode, 1973
- Gilly McIver
- Â Shop Assistant (uncredited) 1 episode, 1973
- John Tatham
- Â Police Sergeant (uncredited) 1 episode, 1973
- Bill Hibbert
- Â Fireman (uncredited) 1 episode, 1973
- Alan Gibbs
- Â Fireman (uncredited) 1 episode, 1973
- Fred Wood
- Â Man in Pub Watching Go-Go Dancer (uncredited) 1 episode, 1974
- Guy Standeven
- Â Special Branch Man (uncredited) 1 episode, 1974
- Philip Ettington
- Â Peter (uncredited) 1 episode, 1974
- Aileen Lewis
- Â Woman in Restaurant Bar (uncredited) 1 episode, 1974
- Juba Kennerley
- Â Embassy Reception Guest (uncredited) 1 episode, 1974
- Walter Henry
- Â Man in Restaurant Bar (uncredited) 1 episode, 1974
- Terry Walsh
- Â Bodyguard (uncredited) 1 episode, 1974
- Steve Emerson
- Â Scrapyard Heavy (uncredited) 1 episode, 1974
- David McGillivray
- Â Ernie the Projectionist (uncredited) 1 episode, 1974
- Eric Kent
- Â Ambush Heavy (uncredited) 1 episode, 1974
- Tim Condren
- Â Scrapyard Heavy (uncredited) 1 episode, 1974
- Kevin Moran
- Â 1st Surveillance Man (uncredited) 1 episode, 1974
