Roman Polanski as Trelkovsky

Isabelle Adjani as Stella

Melvyn Douglas as Monsieur Zy

Jo Van Fleet as Madame Dioz

Bernard Fresson as Scope

Shelley Winters as Concierge

Lila Kedrova as Madame Gaderian

Claude Dauphin as Husband at accident

Claude Piéplu as Neighbour

Rufus as Georges Badar

Romain Bouteille as Simon

Gérard Jugnot as Office Clerk

Josiane Balasko as Viviane, Office Worker

Michel Blanc as Scope's Neighbor

Jacques Monod as Cafe Owner

Patrice Alexsandre as Robert

Jean-Pierre Bagot as Policeman

Florence Blot as Madame Zy

Louba Guertchikoff as Wife at accident

Jacques Chevalier as Patron

Jacky Cohen as Stella's friend

David Gabison as Witness at accident

Bernard-Pierre Donnadieu as Bar waiter

Alain Frérot as Begger

Raoul Guylad as Priest

Éva Ionesco as Bettina, Madame Gaderian's daughter

Héléna Manson as Head Nurse

Maïté Nahyr as Lucille

André Penvern as Cafe waiter

Gérard Pereira as Drunk

Dominique Poulange as Simone Choule

Arlette Reinerg as Tramp

Jacques Rosny as Jean-Claude

Serge Spira as Philippe

Vanessa Vaylord as Martine

François Viaur as Police Sergeant

Albert Delpy as Neighbor (uncredited)

Bruce Lee as Bruce Lee (archive footage) (uncredited)

Alain Sarde as Peeping tom (uncredited)

Philippe Sarde as Man staring at Trelkovsky in the movie theatre (uncredited)

Marie-Christine Descouard as One of the women at the bar (uncredited)