- Alfred Lynch - Squadron Leader Jimmy Briggs
- Peter Barkworth - Vincent
- Cyd Hayman - Nina
- Andrew Keir - Robespierre
- Yootha Joyce - Denise
- Peter Copley - Martin
- Gerald James - Vigny
- David Burke - Beauchamps
- Geoffrey Russell - Colonel Wilmott
- Gordon Whiting - Laplace
- Robert Tayman - Armand
- David Quilter - German Officer
- Brian Cant - German Sergeant
- T. P. McKenna - Louis Sampere
- Stephen Lewis - Goffre
- Derek Newark - Henri
- Richard Warner - Loeffner
- Barry Stanton - Buchner
- Clare Sutcliffe - Jacqueline
- Paul Dawkins - Auguste
- Alec Ross - Motor Cyclist
- Kevin Smith - Snyder
- Richard Hurndall - General von Trenow
- Philip Madoc - Lutzig
- George Murcell - Franco
- Clifford Parrish - Inspector
- Royston Tickner - Biedermann
- Leslie Schofield - Schneibel
- George Little - German N.C.O.
- Mitzi Rogers - Kitchen Girl
- Rosalie Crutchley - Hortense
- Nora Swinburne - The Countess
- Jack Woolgar - Melun
- Jerome Willis - Major Schneider
- Peter Woodthorpe - Sergeant Adler
- Sandor Elès - Helmut
- Graham Ashley - Legouve
- John De Marco - Boissy
- Edward Kelsey - Bonnefoy
- Alvar Liddell - BBC Announcer (voice)
- Alvar Liddell - Newsreader (voice)
- Milton Johns - Renard
- Terry Duggan - Verdon
- Bernard Hepton - Simon
- Leslie French - Dr. Davalle
- Peter Cellier - Louis
- Peggy Ann Wood - Mme. Simon
- Michael Beint - German Sergeant
- Howard Rawlinson - Private Muller
- George Camiller - Phillipe
- Moira Redmond - Yvette
- Julian Glover - Paul
- Robert Hardy - Abwehr Sergeant Gratz
- John Collin - Paco
- Glynn Edwards - Emile Boudin
- Michael Wynne - Jacques
- Robert Russell - Todt
- Vernon Joyner - German Officer
- Peter Hutchins - German Guard
- Joseph O'Conor - Von Gebhardt
- Iain Cuthbertson - Helldorf
- John Normington - Dostler
- Reginald Marsh - Jean Pierre Lasalle
- Madge Ryan - Celestine Moussac
- James Bree - Henri Moussac
- Mary Kenton - Marie Lasalle
- Dennis Chinnery - Ramaud
- Kenneth Watson - Maillot
- Reg Peters - Leclos
- Yuri Borienko - NCO
- Maggie Fitzgibbon - Adelaide
- William Marlowe - Michel
- Paul Humpoletz - Jean-Baptiste
- Dean Harris - German Soldier
- Nerys Hughes - Francine
- George Sewell - Allard
- Lillias Walker - Danielle
- John Gugolka - Philippe
- Ian McCulloch - David Mainwaring
- John Phillips - Klintzch
- Mark Dignam - Reichwein
- John Savident - Raoul
- Arthur White - Henri
- David Garfield - Claude
- Christian Rodska - Stefan
- Jack Niles - Frenchman in Cafe
- David Webb - Linz
- Jeffry Wickham - SS Man
- Tony Beckley - Hochler
- Michael Forrest - Louis
- Reg Lye - Georges
- Frank Jarvis - Hubert
- Alan Haines - German Civilian
- John Garvin - German Scientist
- Simon Cain - German Guard
- Brian Cox - Anton
- Bernard Archard - Lemaitre
- James Maxwell - Egon
- Denis Goacher - Ollweg
- John Crocker - Henri - Street Vendor
- John Crocker - Henri
- Alethea Charlton - Helene
- Terence Lodge - Stepp
- Kenneth Hendel - Gerard
- Stefan Gryff - Petit
- Ann Lynn - Diana
- Maria Aitken - Madame Leonard
- George Innes - Voigt
- James Beckett - Pierre
- James Chase - Corporal
- James Marcus - Private
- Frank Duncan - News Reader (voice)
- Geoffrey Whitehead - Captain Spiegel
- Geoffrey Whitehead - Spiegel
- Peter Welch - Sperr
- Robert John - Security Guard
- Geoffrey Kenion - German Subaltern
- Roy Boyd - Maquis Leader
- Patrick Kavanagh - Luftwaffe Major
- David Garth - Wehrmacht Captain
- Dudley Jones - Ticket Collector
- David Horovitch - Kurt
- Trevor Jones - Hein
- Jack Watson - Zander
- Jane Jordan Rogers - Frau Gratz
- Peter Thomas - SS Man
- Ian Elliott - SS Man
- Derek Bond - Peterson
- Paul Darrow - Eddie
- Graham James - Mark
- Max Faulkner - Naval Officer
- Ray Chiarella - American
Julian Glover interpreta a Paul en la serie.
Alfred Lynch interpreta a Squadron Leader Jimmy Briggs en la serie.
Peter Barkworth interpreta a Vincent en la serie.
Cyd Hayman hace el papel de Nina.
Andrew Keir interpreta a Robespierre en la serie.
Yootha Joyce interpreta a Denise en la serie.
Peter Copley hace el papel de Martin.
Gerald James hace el papel de Vigny.
David Burke hace el papel de Beauchamps.
Geoffrey Russell interpreta a Colonel Wilmott en la serie.
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