Jean Dujardin
Role: Picquart
Louis Garrel
Role: Alfred Dreyfus
Emmanuelle Seigner
Role: Pauline Monnier
Grégory Gadebois
Role: Henry
Hervé Pierre
Role: General Gonse
Wladimir Yordanoff
Role: General Mercier
Didier Sandre
Role: General Boisdeffre
Melvil Poupaud
Role: Maître Labori
Mathieu Amalric
Role: Bertillon
Laurent Stocker
Role: General de Pellieux
Vincent Perez
Role: Maître Leblois
Michel Vuillermoz
Role: Du Paty de Clam
Vincent Grass
Role: General Billot
Denis Podalydès
Role: Maître Demange
Damien Bonnard
Role: Desvernine
Laurent Natrella
Role: Esterhazy
Bruno Raffaelli
Role: Judge Delegorgue
Christophe Maratier
Role: Warrant Officer
Pierre Poirot
Role: Vallecalle Clerk
Stefan Godin
Role: General Darras
Yannik Landrein
Role: Gast
Luca Barbareschi
Role: Philippe Monnier
Mohammed Lakhdar-Hamina
Role: Bachir
Kevin Garnichat
Role: Lauth
Vincent de Boüard
Role: Gribelin
Luce Mouchel
Role: Madame Sandherr
Fabien Tucci
Role: Security Officer
Fred Epaud
Role: Artillery Officer
Nicolas Wanczycki
Role: Foucault
Franck Mercadal
Role: Captain Calmont
Philippe Magnan
Role: Attorney Brisset
Pierre Forest
Role: Colonel Maurel
Édith Le Merdy
Role: Concierge
Jeanne Rosa
Role: Martha Leblois
Benoît Allemane
Role: Georges Charpentier
Ludovic Paris
Role: Senator Ranc
Gérard Chaillou
Role: Georges Clémenceau
Nicolas Bridet
Role: Mathieu Dreyfus
André Marcon
Role: Émile Zola
Pierre Aussedat
Role: Colonel at Picquart's Arrest
Rafaël de Ferran
Role: Newspaper Seller
Jean-Marie Frin
Role: Judge Delegorgue
Swan Starosta
Role: Lucie Dreyfus
Jean-Gilles Barbier
Role: Duel Arbiter
Jean-Marie Lecoq
Role: Duel Doctor
Thierry Gimenez
Role: Colonel Jouaust
Clément Jacqmin
Role: Journalist
Boris Ventura-Diaz
Role: Journalist
Lionel Mur
Role: Journalist
Raphaël Caraty
Role: Journalist
Yves-Pol Deniélou
Role: Journalist
Margritte Gouin
Role: Dancer
Élodie Lobjois
Role: Dancer
Mélanie Malet
Role: Dancer
Carole Mongin
Role: Dancer
Laurine Ristroph
Role: Dancer
Thibault Signovert
Role: Musician
Valentin Cotton
Role: Musician
Florian Blot
Role: Musician
Adrien Boulanger
Role: Musician
Julien Francomano
Role: Musician
Camille-Raphaël Bérard
Role: Musician
Marc Legrand
Role: Musician
Jean-Baptiste Souchon
Role: Musician
Emmanuel Borghi
Role: Musician
Jérome Duhamel
Role: Musician
Patrick Perrin
Role: Musician
Jean-Jacques Breniaud
Role: Gunner
Benjamin Dubos
Role: Gunner
Romain Mestre
Role: Gunner
Guy Chaillaud
Role: Gunner
Charles Lapierre
Role: Gunner
Mickael Cartier
Role: Gunner
Brigitte Boucher
Role: Marie Bastian (uncredited)
Mathieu Cayrou
Role: Private Dugommier (uncredited)
Michèle Clément
Role: Washerwoman (uncredited)
Nicolas de Lavergne
Role: Auguste Dutrieux (uncredited)
Benjamin Gouzien
Role: Joseph Reinach (uncredited)
Pierre Hurel
Role: Man (uncredited)
Romain Lehnhoff
Role: Gunner (uncredited)
Pierre Léon Luneau
Role: Captain Valdant (uncredited)
Roman Polanski
Role: Concertgoer (uncredited)
Charles Tesnière
Role: Officer (uncredited)
Antoine Zerbini
Role: Soldier (uncredited)