- Louis Jourdan - Capt. Charles Girodt
- Michelle Phillips - Jennie Barber
- Marie-France Pisier - Lisa
- Donald Pleasence - Max Dechambre
- John Rubinstein - Herb Kleinfeld
- Stella Stevens - Louise Crawford
- Shelley Winters - Helen Wabash
- Rebecca Balding - Harriet Kleinfeld
- Mark Gorman - Wendell Cornin
- Don Parker - Controller
- Patricia Barry - Bee
- Lance LeGault - Lester Foyles
- William Lucking - Don Crawford
- Nehemiah Persoff - Col. Schreiner
- Dane Clark - Adm. J. Elton Knox
- Richard Anderson - Terrence Crown
- Corinne Calvet - Althea Broussard
- Lee de Broux - Keegan
- Michael Carr - Brother Thomas
- John Shearin - Brother David
- Dennis Howard - Brian Joy
- Harvey Jason - Plessier
- Dana Hill - Maggie Joy
- Bruce French - Christian Specht
- Jean-Paul Vignon - Ferret
- Army Archerd - Stanford Whitman
- Paul Verdier - Claude
- Pete Schrum - Bobo
- Deborah Benson - Betty
- Melissa Converse - Mrs. Joy
- Francis X. McCarthy - Tony
- Ellen Blake - Tony's Wife
- Duane Grey - Fleischman
- Jacqueline Beer - Madame Grilley
- Kenneth White - Barney
- Peter Mamakos - Otto Laneer
- Gwen Van Dam - Barney's Wife
- Erik Holland - Plainclothes Detective
- John Parr - Controller
- Jerry Dunphy - Self
- M. Emmet Walsh - Harry
- James Jeter - Al
- Edith Fields - Al's Wife
- Roger Etienne - Pierre Demangeon
- Stanley Grover - Bradley
- Todd Martin - Freuling
- Curt Lowens - Wilhelm Greitzen
- Philippe Léotard - Blondin
- Maurice Marsac - Brunel
- Roger Til - Devillaine
- Billy Beck - Cabanal
- Sandy Ignon - Bonjalet
- Peter Brandon - Seersucker Suit
- Lewis Charles - Bert
- Ted Danson - Abe Santley
- Arielle Dombasle - Hotel Operator
- Michael Fairman - Comdr. Hewitt
- Jean-François Ferreol - Farmer
- Patrick Gorman - Wendell Cronin
- George Keymas - Nicos
- Lloyd Kino - Osikawa
- Rod Loomis - Harris
- Ion Teodorescu - Panos
- Paul Picerni - Panama Hat (uncredited)
- G.W. Bailey - Jake (uncredited)
- Douglas Heyes
- James Ragan
- Douglas S. Cramer
- Aaron Spelling
- François Bureau
- E. Duke Vincent
- Ken Swor
- Lynn Stalmaster
- John Addison
- Gene S. Cantamessa
Telly Savalas interpreta a Fr. Craig Dunleavy en la serie.
Chad Everett hace el papel de Harold Columbine.
Jean-Pierre Aumont interpreta a Insp. Jean-Claude Raffin en la serie.
Horst Buchholz interpreta a Dr. Chabot en la serie.
James Coco interpreta a Georges Sauvinage en la serie.
José Ferrer hace el papel de Pres. Aristide Brouchard.
John Houseman interpreta a Dr. Archady Clemens en la serie.
Carolyn Jones hace el papel de Peg.
Richard Jordan interpreta a Julian Wunderlicht en la serie.
Louis Jourdan interpreta a Capt. Charles Girodt en la serie.
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