Faye Dunaway as Jill

Frank Langella as Philippe

Barbara Parkins as Cynthia

Karen Blanguernon as Miss Hansen

Raymond Gérôme as Commissaire Chameille

Maurice Ronet as L'homme de l'organisation

Michele Lourie as Cathy

Patrick Vincent as Patrick

Gérard Buhr as Le psychiatre

Louise Chevalier as

Tener Eckelberry as

Massimo Farinelli as

Jill Larson as

Robert Lussac as

Franco Ressel as

Dora van der Groen as

Les Zemgano as

Michel Charrel as Le mâle (uncredited)

Patrick Dewaere as L'homme à l'écharpe jaune (uncredited)

Anne Lonnberg as La deuxième baby sitter (uncredited)