- Gene Barry
- Â Gene Bradley 26 episodes, 1972-1973
- Barry Morse
- Â Mr. Parminter 26 episodes, 1972-1973
- Catherine Schell
- Â Diane Marsh 10 episodes, 1972-1973
- Garrick Hagon
- Â Gavin Taylor 10 episodes, 1972-1973
- Dennis Price
- Â Brandon 3 episodes, 1972-1973
- Alf Joint
- Â Gaston / ... 1 episode, 1973
- Burt Kwouk
- Â Johnny Morrison / ... 2 episodes, 1972-1973
- Sue Gerrard
- Â Jane 2 episodes, 1972
- Stuart Damon
- Â Vince 1 episode, 1972-1973
- Sylvia Syms
- Â Karen Ballard 1 episode, 1972
- Kieron Moore
- Â Nessim 1 episode, 1972
- Sandor Elès
- Â Gerard Laroche 1 episode, 1972
- Natasha Pyne
- Â Ann Somerby 1 episode, 1972
- Wolfe Morris
- Â Sakuma 1 episode, 1972
- Guy Deghy
- Â Willet Mosselman 1 episode, 1972
- Stephanie Beacham
- Â Countess Maria 1 episode, 1973
- André Morell
- Â Father Antonius 1 episode, 1973
- Anthony Nicholls
- Â Samuel Cookson 1 episode, 1973
- Barbara Murray
- Â Lady Diane Battersley 1 episode, 1973
- Paul Daneman
- Â Stopford 1 episode, 1973
- Angela Scoular
- Â Dorinda Stephenson 1 episode, 1972
- Mervyn Johns
- Â Franz Kolmar 1 episode, 1972
- Anouska Hempel
- Â Milena Corri 1 episode, 1972
- John Collin
- Â John Campbell 1 episode, 1972
- Ed Bishop
- Â Wayne 1 episode, 1972
- Patrick Mower
- Â Fleming 1 episode, 1972
- Richard Marner
- Â Werner von Beck 1 episode, 1972
- George Sewell
- Â Harry Venner 1 episode, 1972
- Cyd Hayman
- Â Magda 1 episode, 1972
- Basil Dignam
- Â Prof. John Ballard 1 episode, 1972
- Jane Asher
- Â Sarah Cookson 1 episode, 1973
- Paul Eddington
- Â Paul Charlesworth 1 episode, 1973
- Penelope Horner
- Â Krista Magnus 1 episode, 1973
- Toby Robins
- Â Ingrid Shore 1 episode, 1973
- Cyril Luckham
- Â Lord George Franklin 1 episode, 1973
- Prunella Ransome
- Â Maria Gustave 1 episode, 1973
- Noel Willman
- Â Holvera 1 episode, 1973
- Judy Geeson
- Â Suzy Dolman 1 episode, 1972
- Jennie Linden
- Â Kay Masterson 1 episode, 1972
- Richard Vernon
- Â Sir Richard McKenzie 1 episode, 1972
- Paul Maxwell
- Â Don Fleming 1 episode, 1972
- David Buck
- Â Martin 1 episode, 1972
- Donald Burton
- Â Gorman 1 episode, 1972
- Eric Pohlmann
- Â Luigi 1 episode, 1972
- Janet Key
- Â Virginia Douglas 1 episode, 1972
- Alex Scott
- Â Gregory Varna 1 episode, 1972
- Clifford Evans
- Â Baron Drovotkin 1 episode, 1972
- Kara Wilson
- Â Karen Voriska 1 episode, 1972
- Astrid Frank
- Â Astrid 1 episode, 1972
- David Lampson
- Â Carl Bruner 1 episode, 1972
- Stuart Wilson
- Â Brian Hamilton 1 episode, 1973
- Peter Vaughan
- Â Roberts 1 episode, 1973
- Freddie Jones
- Â George Calloway 1 episode, 1973
- Sheila Gish
- Â Laura 1 episode, 1973
- Adrienne Corri
- Â Nita 1 episode, 1973
- Charles Kay
- Â Inspector Chilton 1 episode, 1973
- Peter Jeffrey
- Â Rymans 1 episode, 1973
- Donald Houston
- Â Jan de Groote 1 episode, 1973
- Sydney Tafler
- Â Wyvern 1 episode, 1973
- Patrick Jordan
- Â Ryker 1 episode, 1973
- Ronald Radd
- Â Graham Hilverston 1 episode, 1973
- Arnold Diamond
- Â Herman Eisen 1 episode, 1973
- Alfred Marks
- Â Darron 1 episode, 1973
- Roy Kinnear
- Â Bill Marks 1 episode, 1972
- Alexandra Bastedo
- Â Lola Wells 1 episode, 1972
- Fiona Lewis
- Â Clarissa de Vere Allan 1 episode, 1972
- Eunice Gayson
- Â Countess Marie 1 episode, 1972
- Anthony Ainley
- Â Dr. Josef Kerston 1 episode, 1972
- John Savident
- Â Consul 1 episode, 1972
- Sharon Gurney
- Â Valerie Green 1 episode, 1972
- David Cargill
- Â Narouz 1 episode, 1972
- John Barrie
- Â Vladimir Horvic 1 episode, 1972
- George Mikell
- Â Lanik 1 episode, 1972
- Michael Godfrey
- Â Captain Arilla 1 episode, 1972
- Michael Forrest
- Â Dino 1 episode, 1972
- Dawn Addams
- Â Lady Anne Benson 1 episode, 1973
- Michael Gwynn
- Â Sir Richard 1 episode, 1973
- Angela Douglas
- Â Vanessa Battersley 1 episode, 1973
- Alan Lake
- Â Carlo 1 episode, 1973
- Reginald Marsh
- Â Sorensen 1 episode, 1973
- Kevin Stoney
- Â Miesner 1 episode, 1973
- Carl Duering
- Â Colonel Kazan 1 episode, 1973
- Doug Fisher
- Â Don Merrick 1 episode, 1973
- John Moffatt
- Â Armand 1 episode, 1973
- Pippa Steel
- Â Karen Dorron 1 episode, 1973
- Victor Lucas
- Â Inspector Tribe 1 episode, 1973
- Carl Rigg
- Â Forrester 1 episode, 1973
- Pamela Salem
- Â Michele 1 episode, 1972
- Bernard Kay
- Â Micholos Zentner 1 episode, 1972
- Robert Rietty
- Â Bank Director 1 episode, 1972
- Lance Percival
- Â Carl Gardner 1 episode, 1972
- Stefan Kalipha
- Â Maurice 1 episode, 1972
- Mark Jones
- Â Alden 1 episode, 1972
- Martin Wyldeck
- Â Prokov 1 episode, 1972
- Rio Fanning
- Â Mike Kelly 1 episode, 1972
- Simon Lack
- Â Colonel Andreyev 1 episode, 1972
- Alan Downer
- Â Police Inspector 1 episode, 1972
- Warren Stanhope
- Â Brett 1 episode, 1972
- Robert Cartland
- Â Peter Maller 1 episode, 1972
- Maurice Browning
- Â Zavar 1 episode, 1972
- Ingrid Pitt
- Â Elayna 1 episode, 1973
- Gabrielle Drake
- Â Marian 1 episode, 1973
- Rona Newton-John
- Â Nurse 1 episode, 1973
- David Hargreaves
- Â Russell 1 episode, 1973
- Norman Bird
- Â Brooks 1 episode, 1973
- Martin Benson
- Â Nicky Asteri 1 episode, 1973
- Gillian Bailey
- Â Lizzy 1 episode, 1973
- Maurice Kaufmann
- Â Geoffrey Gains 1 episode, 1973
- David Weston
- Â Farley 1 episode, 1973
- Joanna Vogel
- Â Julia 1 episode, 1973
- Marc Boyle
- Â Miguel 1 episode, 1973
- Robin Hawdon
- Â Buckley 1 episode, 1973
- Frank Barrie
- Â Werner 1 episode, 1973
- Margaretta Scott
- Â Lady Hargrom 1 episode, 1972
- Milton Johns
- Â Alex 1 episode, 1972
- Joanna Dunham
- Â Gerda Hoffman 1 episode, 1972
- Cec Linder
- Â General McCready 1 episode, 1972
- Marc Zuber
- Â Kanarek 1 episode, 1972
- John Malcolm
- Â Jensen 1 episode, 1972
- Wensley Pithey
- Â Nicholas 1 episode, 1972
- Johnny Wade
- Â Johnson 1 episode, 1972
- Barrie Cookson
- Â Carl 1 episode, 1972
- Jerry Stovin
- Â Al Graham 1 episode, 1972
- Denis McCarthy
- Â Porter 1 episode, 1972
- Al Garcia
- Â Police Inspector 1 episode, 1972
- Brian Hewitt-Jones
- Â Mr. Pinter 1 episode, 1972
- Ben Kingsley
- Â Pierre 1 episode, 1973
- David Kelly
- Â Carlson 1 episode, 1973
- Jim Norton
- Â Johnny Morgan 1 episode, 1973
- Anne Sharp
- Â Laura Darnley 1 episode, 1973
- Jenny Hanley
- Â Julia Franklin 1 episode, 1973
- John Levene
- Â Tony 1 episode, 1973
- Judy Matheson
- Â Claire Adams 1 episode, 1973
- George Pravda
- Â Newburg 1 episode, 1973
- Bridget Armstrong
- Â Yvette 1 episode, 1973
- Geoffrey Russell
- Â Hotel Manager 1 episode, 1973
- Janos Kurucz
- Â Riener 1 episode, 1973
- Richardson Morgan
- Â Security Man 1 episode, 1973
- Karl Held
- Â Major 1 episode, 1972
- Robert Raglan
- Â Beavis 1 episode, 1972
- Sean Caffrey
- Â Borislav 1 episode, 1972
- Howard Goorney
- Â Hotel Clerk 1 episode, 1972
- Leslie Crawford
- Â Jan 1 episode, 1972
- Vera Fusek
- Â Simone Laforque 1 episode, 1972
- Edwin Brown
- Â Farmer 1 episode, 1972
- John Herrington
- Â Andrei Korony 1 episode, 1972
- Ray Chiarella
- Â Hotel Clerk 1 episode, 1972
- Nik Zaran
- Â Charolais 1 episode, 1972
- Franco De Rosa
- Â Hotel Clerk 1 episode, 1972
- Stephen Sheppard
- Â Stephen 1 episode, 1972
- Andy Bradford
- Â Max 1 episode, 1973
- Paul Williamson
- Â Superintendent 1 episode, 1973
- Peter Birrel
- Â Assistant Director 1 episode, 1973
- Donald Eccles
- Â Andre Gustave 1 episode, 1973
- William Abney
- Â Co-Pilot 1 episode, 1973
- Norman Ettlinger
- Â Lynsky 1 episode, 1973
- Alan Judd
- Â Sir Walter Battersley 1 episode, 1973
- Geoffrey Reed
- Â Butler 1 episode, 1973
- Anthony Rowlands
- Â Soames 1 episode, 1973
- Perry Soblosky
- Â Gigilo 1 episode, 1973
- John York
- Â Johnny 1 episode, 1973
- Tristan Rogers
- Â Dieter 1 episode, 1972
- Frederick Schiller
- Â Woodsman 1 episode, 1972
- Debbie Russ
- Â Debbie Pinter 1 episode, 1972
- Stanley Lebor
- Â Michael - Guard 1 episode, 1972
- Hugh Walters
- Â Pestrade 1 episode, 1972
- John Serret
- Â Cafe Proprietor 1 episode, 1972
- Lionel Murton
- Â Chris Jefford 1 episode, 1972
- Paul Greaves
- Â Aide 1 episode, 1972
- Norman Caro
- Â General Curt Schlessen 1 episode, 1972
- John Stuart
- Â Records Clerk 1 episode, 1973
- Anthony Dawes
- Â Lawson 1 episode, 1973
- George Little
- Â Rostov 1 episode, 1973
- Ken Wayne
- Â Director 1 episode, 1973
- Max Latimer
- Â Max 1 episode, 1973
- David Rayner
- Â Reporter 1 episode, 1973
- James Ware
- Â Reynolds 1 episode, 1973
- John Horsley
- Â John Burdett 1 episode, 1972
- Sean Hewitt
- Â Marco 1 episode, 1972
- Paddy Ryan
- Â Zenn 1 episode, 1972
- Keith Ashley
- Â Manservant 1 episode, 1972
- David Lawton
- Â Anton Jurzyck 1 episode, 1972
- Anna Kilpinen
- Â Waitress 1 episode, 1972
- Ronald Chenery
- Â Edwards 1 episode, 1972
- Robert Gillespie
- Â Customs Officer 1 episode, 1973
- Robert James
- Â Auctioneer 1 episode, 1973
- Paul Hardwick
- Â David Winters 1 episode, 1973
- David Pugh
- Â Milkman 1 episode, 1973
- Christine Donna
- Â Miss Cooper - Secretary 1 episode, 1973
- Nicholas Evans
- Â Reporter 1 episode, 1973
- Jeremy Higgins
- Â Barman 1 episode, 1973
- Larry Taylor
- Â Angelo 1 episode, 1972
- Aharon Ipalé
- Â Driver 1 episode, 1972
- Christopher Sandford
- Â Lanik 1 episode, 1972
- John Dunbar
- Â Police Inspector 1 episode, 1972
- Elaine Montgomerie
- Â Woman Delegate 1 episode, 1972
- Mischa De La Motte
- Â Bolton 1 episode, 1973
- Nancie Wait
- Â Secretary 1 episode, 1973
- Edward Dentith
- Â Commissionaire 1 episode, 1973
- David Blagden
- Â Grant 1 episode, 1973
- Bernard Severn
- Â 1st Businessman 1 episode, 1973
- Kerima
- Â Belly Dancer 1 episode, 1972
- Norman Chappell
- Â Janitor 1 episode, 1972
- Stuart Sherwin
- Â Driver 1 episode, 1972
- Stuart Nichol
- Â Man in Corridor 1 episode, 1972
- Michael Martin
- Â Bank Official 1 episode, 1973
- Martin Carroll
- Â 2nd Businessman 1 episode, 1973
- Norman Atkyns
- Â Shopkeeper 1 episode, 1972
- Gail Galih
- Â Stewardess 1 episode, 1973
- Laraine Humphrys
- Â Co-star 1 episode, 1972
- John Tatham
- Â Bar Patron / ... (uncredited) 4 episodes, 1972-1973
- Guy Standeven
- Â Hotel Desk Clerk / ... (uncredited) 2 episodes, 1972-1973
- Victor Harrington
- Â Cricket Match Spectator (uncredited) 1 episode, 1972
- Vincent Wong
- Â Delegate (uncredited) 1 episode, 1972
- Dinny Powell
- Â Stuntman (uncredited) 1 episode, 1972
- Lewis Alexander
- Â Cricket Match Spectator (uncredited) 1 episode, 1972
- Arthur Brough
- Â Mr. Dorron (uncredited) 1 episode, 1973
- Terence Plummer
- Â Henchman (uncredited) 1 episode, 1973
- Alan Harris
- Â Reporter (uncredited) 1 episode, 1973
- Nosher Powell
- Â Jenkins - Masseur (uncredited) 1 episode, 1973
- Maxwell Craig
- Â Henchman (uncredited) 1 episode, 1973
- Michael Stevens
- Â Onlooker (uncredited) 1 episode, 1973
- Alan Meacham
- Â Reporter (uncredited) 1 episode, 1973
- Tony O'Leary
- Â Henchman (uncredited) 1 episode, 1973