Jean Dujardin

Picquart

Louis Garrel

Alfred Dreyfus

Emmanuelle Seigner

Pauline Monnier

Grégory Gadebois

Henry

Hervé Pierre

General Gonse

Wladimir Yordanoff

General Mercier

Didier Sandre

General Boisdeffre

Melvil Poupaud

Maître Labori

Eric Ruf

Sandherr

Mathieu Amalric

Bertillon

Laurent Stocker

General de Pellieux

Vincent Perez

Maître Leblois

Michel Vuillermoz

Du Paty de Clam

Vincent Grass

General Billot

Denis Podalydès

Maître Demange

Damien Bonnard

Desvernine

Laurent Natrella

Esterhazy

Bruno Raffaelli

Judge Delegorgue

Christophe Maratier

Warrant Officer

Pierre Poirot

Vallecalle Clerk

Stefan Godin

General Darras

Yannik Landrein

Gast

Luca Barbareschi

Philippe Monnier

Mohammed Lakhdar-Hamina

Bachir

Kevin Garnichat

Lauth

Vincent de Boüard

Gribelin

Luce Mouchel

Madame Sandherr

Fabien Tucci

Security Officer

Fred Epaud

Artillery Officer

Nicolas Wanczycki

Foucault

Franck Mercadal

Captain Calmont

Philippe Magnan

Attorney Brisset

Pierre Forest

Colonel Maurel

Édith Le Merdy

Concierge

Jeanne Rosa

Martha Leblois

Benoît Allemane

Georges Charpentier

Ludovic Paris

Senator Ranc

Gérard Chaillou

Georges Clémenceau

Nicolas Bridet

Mathieu Dreyfus

André Marcon

Émile Zola

Pierre Aussedat

Colonel at Picquart's Arrest

Rafaël de Ferran

Newspaper Seller

Jean-Marie Frin

Judge Delegorgue

Swan Starosta

Lucie Dreyfus

Jean-Gilles Barbier

Duel Arbiter

Jean-Marie Lecoq

Duel Doctor

Thierry Gimenez

Colonel Jouaust

Clément Jacqmin

Journalist

Boris Ventura-Diaz

Journalist

Lionel Mur

Journalist

Raphaël Caraty

Journalist

Yves-Pol Deniélou

Journalist

Élodie Auger

Dancer

Margritte Gouin

Dancer

Élodie Lobjois

Dancer

Mélanie Malet

Dancer

Carole Mongin

Dancer

Laurine Ristroph

Dancer

Thibault Signovert

Musician

Valentin Cotton

Musician

Florian Blot

Musician

Adrien Boulanger

Musician

Julien Francomano

Musician

Camille-Raphaël Bérard

Musician

Marc Legrand

Musician

Jean-Baptiste Souchon

Musician

Emmanuel Borghi

Musician

Jérome Duhamel

Musician

Patrick Perrin

Musician

Jean-Jacques Breniaud

Gunner

Benjamin Dubos

Gunner

Romain Mestre

Gunner

Guy Chaillaud

Gunner

Charles Lapierre

Gunner

Mickael Cartier

Gunner

Brigitte Boucher

Marie Bastian (uncredited)

Mathieu Cayrou

Private Dugommier (uncredited)

Michèle Clément

Washerwoman (uncredited)

Nicolas de Lavergne

Auguste Dutrieux (uncredited)

Benjamin Gouzien

Joseph Reinach (uncredited)

Pierre Hurel

Man (uncredited)

Romain Lehnhoff

Gunner (uncredited)

Pierre Léon Luneau

Captain Valdant (uncredited)

Roman Polanski

Concertgoer (uncredited)

Charles Tesnière

Officer (uncredited)

Antoine Zerbini

Soldier (uncredited)