- 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
- Dennis Dimster - Billy
- 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 hace el papel de Dr. Chabot.
James Coco hace el papel de Georges Sauvinage.
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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