Emmanuelle Seigner Pauline Monnier
Jean Dujardin Picquart
Roman Polanski Director, Concertgoer (uncredited), Writer
Louis Garrel Alfred Dreyfus
Grégory Gadebois Henry
Mathieu Amalric Bertillon
Franck Mercadal Captain Calmont
Wladimir Yordanoff General Mercier
Melvil Poupaud Maître Labori
André Marcon Émile Zola
Vincent Perez Maître Leblois
Fred Epaud Artillery Officer
Pierre Aussedat Colonel at Picquart's Arrest
Benoît Allemane Georges Charpentier
Paolo Del Brocco Co-Producer
Jean-Marie Frin Judge Delegorgue
Brigitte Boucher Marie Bastian (uncredited)
Gérard Chaillou Georges Clémenceau
Luce Mouchel Madame Sandherr
Ludovic Paris Senator Ranc
Zbigniew Gustowski Focus Puller
Luca Barbareschi Co-Producer, Philippe Monnier
Thierry Gimenez Colonel Jouaust
Jean-Gilles Barbier Duel Arbiter
Jean-Marie Lecoq Duel Doctor
Alexandre Desplat Original Music Composer
Clément Jacqmin Journalist
Philippe Magnan Attorney Brisset
Kevin Garnichat Lauth
Didier Sandre General Boisdeffre
Jeanne Rosa Martha Leblois
Lukasz Raczynski Executive Producer
Damien Bonnard Desvernine
Nicolas Bridet Mathieu Dreyfus
Laurent Natrella Esterhazy
Constantino Margiotta Executive Producer
Pierre Forest Colonel Maurel
Roman Abramovich Executive Producer
Axelle Boucaï Associate Producer
Swan Starosta Lucie Dreyfus
Pierre Léon Luneau Captain Valdant (uncredited)
Kasia Nabialczyk Executive Producer
Hervé de Luze Editor
Robert Harris Book, Screenplay
Laurent Stocker General de Pellieux
Raphaël Caraty Journalist
Zbigniew Raczynski Executive Producer
Michel Vuillermoz Du Paty de Clam
Vincent de Boüard Gribelin
Yannik Landrein Gast
Fabien Tucci Security Officer
Mathieu Cayrou Private Dugommier (uncredited)
Pierre Hurel Man (uncredited)
Hervé Pierre General Gonse
Paweł Edelman Director of Photography
Édith Le Merdy Concierge
Eric Ruf Sandherr
Charles Tesnière Officer (uncredited)
Nicolas Wanczycki Foucault
Denis Podalydès Maître Demange
Mohammed Lakhdar-Hamina Bachir
Alain Féat Sound Editor
Nicolas de Lavergne Auguste Dutrieux (uncredited)
Michaël Laguens Casting
Mickael Cartier Gunner
Vincent Grass General Billot
Alain Goldman Producer
Lionel Mur Journalist
Lucien Balibar Sound
Valentin Cotton Musician
Boris Ventura-Diaz Journalist
Emmanuel Borghi Musician