- Terence Longdon
- Â Garry Halliday 50 episodes, 1959-1962
- Elwyn Brook-Jones
- Â The Voice 38 episodes, 1959-1962
- Terence Alexander
- Â Bill Dodds - Co-pilot 31 episodes, 1959-1961
- Frederick Treves
- Â Nigel Fox / ... 27 episodes, 1959-1962
- Audrey Nicholson
- Â Vicky Fox 25 episodes, 1961-1962
- Maurice Kaufmann
- Â Sergeant Adolph Traumann / ... 20 episodes, 1959-1962
- Geoffrey Palmer
- Â Narrator / ... 20 episodes, 1959-1962
- Bill Kerr
- Â Eddie Robbins 17 episodes, 1962
- Richard Dare
- Â Heidrich / ... 16 episodes, 1959-1962
- Juno Stevas
- Â Sonya Delamere 15 episodes, 1959-1961
- Jennifer Wright
- Â Jean Wills 12 episodes, 1959-1960
- Edward Jewesbury
- Â Inspector Potter 12 episodes, 1960-1962
- Edward Evans
- Â Assistant Commissioner / ... 10 episodes, 1960-1962
- Hugh Latimer
- Â Mr. Temhani / ... 9 episodes, 1962
- John Harrison
- Â Passenger / ... 8 episodes, 1959-1962
- Hamilton Dyce
- Â Sir Charles Logan / ... 7 episodes, 1959-1962
- Michael Collins
- Â Inspector Franks 7 episodes, 1959
- Gudrun Ure
- Â Jean Wills 6 episodes, 1959
- Richard Warner
- Â Dr. Edmundo / ... 6 episodes, 1959-1962
- Oliver Johnston
- Â Professor Irenon 6 episodes, 1962
- Robin Lloyd
- Â Paul Brinker / ... 6 episodes, 1959-1962
- Norman Hartley
- Â Swiss Policeman / ... 6 episodes, 1959-1962
- Anthony Sagar
- Â Hesse / ... 6 episodes, 1959-1960
- Philip Howard
- Â Sergeant Banks / ... 6 episodes, 1959-1960
- Andrew Faulds
- Â Commentator 6 episodes, 1959
- George Little
- Â Fahzil Imrali / ... 6 episodes, 1960-1962
- Peter Myers
- Â Smith-Clayton / ... 6 episodes, 1960-1961
- John Hollis
- Â Dr. Klaus 6 episodes, 1960
- Gordon Sterne
- Â Viner 6 episodes, 1960
- Nicholas Meredith
- Â Inspector Potter 6 episodes, 1960
- David Morrell
- Â Luigi / ... 6 episodes, 1961-1962
- Hector Ross
- Â Jumbo Wiles 6 episodes, 1961
- Barbara Evans
- Â Ludmilla / ... 6 episodes, 1962
- Harold Lang
- Â Da Rica 5 episodes, 1961
- Jack Rodney
- Â Private Fallon 5 episodes, 1962
- James Neylin
- Â O'Brien / ... 5 episodes, 1960-1962
- David Lyn
- Â French Inspector / ... 5 episodes, 1959-1960
- Jeremy Burnham
- Â Philip Latters 5 episodes, 1959
- Jane Cavendish
- Â Giuletta / ... 5 episodes, 1960-1962
- Terry Baker
- Â Flash / ... 5 episodes, 1960-1962
- Mercy Haystead
- Â Mary 5 episodes, 1960
- Ivan Craig
- Â Mustapha 5 episodes, 1960
- Murray Kash
- Â Leo 5 episodes, 1960
- Michael Harald
- Â BBC Announcer / ... 5 episodes, 1961-1962
- Jennifer Jayne
- Â Martha Blair 4 episodes, 1960
- Neville Becker
- Â Gaston 4 episodes, 1959
- Stanley Van Beers
- Â Herman 4 episodes, 1959
- David Langford
- Â Tim Halliday 4 episodes, 1959
- Dennis Harkin
- Â Hans / ... 4 episodes, 1962
- Gerald Turner
- Â Mike Henry 4 episodes, 1962
- Alan Tilvern
- Â General Hasheme / ... 3 episodes, 1962
- Ivor Salter
- Â Controller / ... 3 episodes, 1959-1962
- John Collin
- Â Cardiff distributor / ... 3 episodes, 1959-1960
- John Hussey
- Â Martin / ... 3 episodes, 1959-1960
- Geoffrey Hibbert
- Â George Basset 3 episodes, 1959
- Zorenah Osborne
- Â Marciana 3 episodes, 1959
- Mike Hall
- Â Alan Marriott / ... 3 episodes, 1960-1962
- Peter M. Elrington
- Â Mappin / ... 3 episodes, 1960-1961
- Michael Bilton
- Â Jarvis / ... 3 episodes, 1960
- David Waller
- Â Clovis / ... 3 episodes, 1960
- Victor Lucas
- Â Sheik of Ballakesh 3 episodes, 1960
- Glenn Williams
- Â Barman 3 episodes, 1960
- Fred Ferris
- Â Inspector Butterfield / ... 3 episodes, 1961-1962
- Clive Cazes
- Â Lieutenant Boule / ... 3 episodes, 1961-1962
- Kevin Brennan
- Â Mr. Karim 3 episodes, 1962
- Simone Lovell
- Â Simonetta / ... 3 episodes, 1962
- Tom Gill
- Â Mr. Pennington / ... 3 episodes, 1962
- Roland Brand
- Â Hoover 3 episodes, 1962
- Julie Martin
- Â Leonie Martin 3 episodes, 1962
- Peter Halliday
- Â Chandon / ... 2 episodes, 1960-1962
- André Maranne
- Â Customs Officer 2 episodes, 1959-1962
- Annette Kerr
- Â Miss Sanderly / ... 2 episodes, 1959-1962
- Jill Tracey
- Â Elvi / ... 2 episodes, 1959-1960
- Patricia Haines
- Â Airport Announcer / ... 2 episodes, 1959
- Walter Randall
- Â Perfidio 2 episodes, 1959
- Roger Snowdon
- Â Sebastiano 2 episodes, 1959
- Deering Wells
- Â Pop 2 episodes, 1959
- Howard Somers
- Â French Waiter 2 episodes, 1959
- George Fisher
- Â First Arab / ... 2 episodes, 1960-1962
- Jill Hyem
- Â Swiss Clerk / ... 2 episodes, 1960-1961
- Leon Thau
- Â Crake 2 episodes, 1960
- Joseph Greig
- Â Smudger 2 episodes, 1960
- Denis Goacher
- Â Inspector Lacoste 2 episodes, 1960
- Jay Denyer
- Â Bookie Bob / ... 2 episodes, 1960
- Norma Parnell
- Â Secretary 2 episodes, 1960
- Michael Hitchman
- Â Dr. Senior 2 episodes, 1960
- Michael Harding
- Â Sergeant Shotter 2 episodes, 1960
- Frederic Steger
- Â Swiss Inspector 2 episodes, 1960
- Anthony Bate
- Â Sergeant Jones / ... 2 episodes, 1961-1962
- John Forbes-Robertson
- Â Secretary / ... 2 episodes, 1961-1962
- Winifred Hindle
- Â Mrs. Peacock / ... 2 episodes, 1961-1962
- Justine Lord
- Â Ruth Weyland 2 episodes, 1961
- Jack Carlton
- Â Airport Manager 2 episodes, 1961
- Talfryn Thomas
- Â Passenger / ... 2 episodes, 1962
- Ian Fairbairn
- Â Officer 2 episodes, 1962
- Bettine Le Beau
- Â French Barmaid 1 episode, 1962
- Maureen Moore
- Â Daphnis 2 episodes, 1962
- William Mervyn
- Â Sir Henry Ferguson 1 episode, 1962
- Jeremy Hawk
- Â Captain Talbot 1 episode, 1962
- Gladys Young
- Â Madame Simon 1 episode, 1962
- Earl Cameron
- Â Prince Feisal 1 episode, 1962
- Clifford Mollison
- Â Lord Beldon 1 episode, 1962
- Bill Nagy
- Â E.J. Langer 1 episode, 1962
- Robert James
- Â Tarrega 1 episode, 1962
- Vernon Morris
- Â Terry 1 episode, 1959
- Claire Gordon
- Â Nurse 1 episode, 1959
- John Barrett
- Â Manchester distributor 1 episode, 1959
- Gertan Klauber
- Â Hobbs 1 episode, 1959
- Anthony Woodruff
- Â Doctor 1 episode, 1959
- Roger Avon
- Â Glasgow distributor 1 episode, 1959
- Julian D'Albie
- Â Airport Officer 1 episode, 1959
- John Crocker
- Â Local Inspector 1 episode, 1959
- Ann Taylor
- Â Shop assistant 1 episode, 1959
- Nora Gordon
- Â Cockney woman 1 episode, 1959
- Michael Corcoran
- Â Arthur 1 episode, 1959
- Gerard Hely
- Â Geoff 1 episode, 1959
- John Stirling
- Â Ian 1 episode, 1959
- Sally Travers
- Â Mrs. Meats 1 episode, 1959
- Peter Noel Cook
- Â Police Constable 1 episode, 1959
- Esmond Webb
- Â Birmingham distributor 1 episode, 1959
- James Beattie
- Â Lenny 1 episode, 1959
- Douglas Storm
- Â Parker 1 episode, 1959
- Clarence Bigge
- Â Mr. Bullmore 1 episode, 1959
- Ronald Mayer
- Â Police Sergeant 1 episode, 1959
- Nigel Sharpe
- Â Newsvendor 1 episode, 1959
- Stanley Groome
- Â Cockney man 1 episode, 1959
- Alec Foster
- Â Old Crampton 1 episode, 1959
- Desmond Llewelyn
- Â Psychiatrist 1 episode, 1960
- Sydney Bromley
- Â The Admiral 1 episode, 1960
- Sally Douglas
- Â Arab Girl 1 episode, 1960
- Mela White
- Â Countrywoman 1 episode, 1960
- Michael Peake
- Â Loti 1 episode, 1960
- Ian Wilson
- Â Clerk 1 episode, 1960
- Dorothy Gordon
- Â Mrs. Fawcett 1 episode, 1960
- Jack Cooper
- Â Second Arab 1 episode, 1960
- Rowena Gregory
- Â Win 1 episode, 1960
- Bettine Milne
- Â Passenger's wife 1 episode, 1960
- Louis Haslar
- Â Gully 1 episode, 1960
- Lee Richardson
- Â Police Sergeant 1 episode, 1960
- Alban Blakelock
- Â Feathers 1 episode, 1960
- Frances Buckeridge
- Â Cook's help 1 episode, 1960
- Minush Thuillier
- Â Arab Girl 1 episode, 1960
- Alan Stuart
- Â Police Sergeant 1 episode, 1960
- Graham Suter
- Â Psychologist 1 episode, 1960
- Hal Dyer
- Â Waitress 1 episode, 1961
- David Lander
- Â Dherio 1 episode, 1961
- Robert S. Young
- Â Mr. Sharples 1 episode, 1961
- Norman Pitt
- Â Henry Gardner 1 episode, 1961
- Jill Thompson
- Â Meg 1 episode, 1961
- Wilfrid Grantham
- Â Italian Police Inspector 1 episode, 1961
- John Woodnutt
- Â Navos 1 episode, 1962
- Valerie Bell
- Â Rita 1 episode, 1962
- John Abineri
- Â Orlando Martini 1 episode, 1962
- Pamela Stirling
- Â Joan Walker 1 episode, 1962
- Roy Purcell
- Â Gustav 1 episode, 1962
- Penelope Lee
- Â Receptionist 1 episode, 1962
- Seymour Green
- Â Inspector Renaud 1 episode, 1962
- Dinny Powell
- Â Thug 1 episode, 1962
- Jean Marlow
- Â Typist 1 episode, 1962
- Andreas Malandrinos
- Â Monsieur Renan 1 episode, 1962
- Roy Patrick
- Â Fireman 1 episode, 1962
- Bruce Wightman
- Â Private Baltonne 1 episode, 1962
- Charles Price
- Â Sailor 1 episode, 1962
- Jacques Cey
- Â First Removal Man 1 episode, 1962
- Henry Kay
- Â Martini's assistant 1 episode, 1962
- Lawrence James
- Â Harris 1 episode, 1962
- Jill Johnson
- Â Jane Ellis 1 episode, 1962
- Jack Newmark
- Â Second crook 1 episode, 1962
- Kim Peacock
- Â First Councillor 1 episode, 1962
- Robin Ford
- Â Tony 1 episode, 1962
- Norman Claridge
- Â Headmaster 1 episode, 1962
- Madeleine Kasket
- Â Stewardess 1 episode, 1962
- Brenda Dean
- Â Betty Lewis 1 episode, 1962
- Frank Henderson
- Â Second Councillor 1 episode, 1962
- Bryn Bartlett
- Â Gaston 1 episode, 1962
- Paddy Hayes
- Â Hassan 1 episode, 1962
- Sandra Skermer
- Â Receptionist 1 episode, 1962
- Peter Marden
- Â Lieutenant Smallwood 1 episode, 1962
- Michael Harrison
- Â Policeman 1 episode, 1962
- John Barry-Hayes
- Â Second man 1 episode, 1962
- Ian Percy
- Â First Boy 1 episode, 1962
- Pat Wallen
- Â Nurse 1 episode, 1962
- Christopher Brett
- Â Ian Hopcraft 1 episode, 1962
- Freddy Eldrett
- Â Second Schoolboy 1 episode, 1962
- Anthony Lown
- Â First Schoolboy 1 episode, 1962
- Kevin Barry
- Â Austrian Inspector 1 episode, 1962
- Chris Fay
- Â Thug 1 episode, 1962
- Mike Adams
- Â Maurice 1 episode, 1962
- Eric Phillips
- Â Mr. Hopcraft 1 episode, 1962
- Peter Hempson
- Â Dubois 1 episode, 1962
