- Philip Madoc - D'Armacourt
- Bill Wallis - Chernak
- Franziskus Abgottspon - Zurich cabbie #2
- Frederick Bartman - Man in bank lobby
- John Carlin - Stossel
- George Lane Cooper - Gigantic Man
- Otto Dornbierer - Boarding house manager
- Freddie Earlle - The Beggar
- John Harding - BBC TV newsman
- Kate Howard - Angelique
- Leslie Lai - Vietnamese wife
- Michael Mellinger - Bertinelli
- Wayne Michaels - Man in elevator
- Jürgen Pruschanski - Zurich cabbie #1
- Cyril Shaps - Apfel
- Roger Tebb - Blonde man
- Bruce Boa - Sen. Crawford
- James Faulkner - D'Anjou
- James Laurenson - Gillette
- Jacqueline Pearce - Madame Jacqui
- Shane Rimmer - Gen. Conklin
- Michael Anthony - French priest
- Robert Arden - Stevens
- Marianne Borgo - Boutique receptionist
- Joseph Frost - Young David Webb
- Leon Herbert - New York cabbie
- Raymond Johnson - Abbott's driver
- Robert MacLeod - Yachtsman
- Sylvia Marriott - Meg
- Ted Maynard - Dugan
- James Walker - Chef
- Martine Diotalevi - Fisherman's daughter (uncredited)
- Derek Lyons - Hotel Guest (uncredited)
- Peter Heslop
- Roger Young
- Nigel Goldsack
- Gayle Scott
- Alan Shayne
- Rose Tobias Shaw
- Martin Rabbett
- Andrew Sissons
- Laurence Rosenthal
Richard Chamberlain interpreta a Jason Bourne en la serie.
Jaclyn Smith interpreta a Marie St. Jacques en la serie.
Donald Moffat interpreta a David Abbott en la serie.
Anthony Quayle interpreta a Gen. François Villiers en la serie.
Denholm Elliott interpreta a Dr. Geoffrey Washburn en la serie.
Yorgo Voyagis hace el papel de Carlos.
Peter Vaughan interpreta a Fritz Koenig en la serie.
Michael Habeck interpreta a The Fat Man en la serie.
Wolf Kahler interpreta a Gold Glasses en la serie.
Philip Madoc interpreta a D'Armacourt en la serie.
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