Peter O'Toole as Larry Martin

Richard Attenborough as Edward Sloat

Kim Cattrall as Joyce Donnovan

Isabelle Huppert as Helene Nikolaos

Brigitte Ariel as Sabine

Cliff Gorman as Yafet Hemlekh

Claude Dauphin as Charles-André Fargeau

John V. Lindsay as Sen. Donnovan

Peter Lawford as Lord Carter

Raf Vallone as George Nikolaos

Adrienne Corri as Lady Carter

Amidou as Kirkbane

Yosef Shiloach as Hacam

Lalla Ward as Margaret

Debra Berger as Gertrude

Françoise Brion as Melina Nikolaos

Klaus Löwitsch as Hans Schloss

Erik Lee Preminger as Ken