Jean-Philippe
A bourgeois office drone whose raison d'être is the music of French rocker Johnny Hallyday awakens one day in an alternate universe where the famed musician never recorded a single song. When he’s not at the office dutifully plugging-away, Fabrice lives a deadly dull life.
Fabrice Luchini
Fabrice / Self
Johnny Hallyday
Jean-Philippe Smet / Self
Guilaine Londez
Babette
Antoine Duléry
Chris Summer / Christian Saumon
Élodie Bollée
Laura / Marion
Olivier Gueritée
Laurent
Jackie Berroyer
Marion's physics teacher
Caroline Cellier
Caroline
Barbara Schulz
Gabrielle
Benoît Poelvoorde
Bernard Frédéric, double of Claude François
Jean-Claude Camus
Self, Chris Summer's producer
Christine Paolini
Edith
Antoine Stip
Denis Loman
Christian Pereira
Michel, colleague of Fabrice
Denis Braccini
Jean-Paul
Francis Coffinet
Missonnier
Carlo Nell
Old bearded man from the pub
Emilie de Preissac
Marion's friend
Sophie Cattani
Jennifer
Dominique Thomas
Pyrotechnician
Christophe Rouzaud
Neighbor at the pub
Julia Vidit
Police woman
Laurent Berthet
Policeman
Philippe Rigot
Passerby
Jean-Baptiste Puech
Seller
François Toumarkine
Homeless man in the square
Michèle Ernou
Bohemian woman
Eric Averlant
Philou
Junior Rondinaud
Young breaker
Jacky Nercessian
Teacher
Blandine Pélissier
Principal of the elementary school
Éléonore Bernheim
Casting assistant
Jean-Pascal Abribat
Production assistant
Christine Bonnard
Nurse
Jeanne Herry
Bride
Quentin Ogier
Groom
Lise Lamétrie
Passerby
Bob Martet
Annoying customer
Jean-Michel Couturier
Man from the bar
François-Xavier Anseaume
Denis Loman's understudy
Xavier Bonastre
Laeticia Hallyday
Karaoke spectator (uncredited)
Liliane Briand
Lady in Nightclub (uncredited)
Sabine Crossen
Nurse (uncredited)
Guillaume Delaunay
(uncredited)
Evymoon
Self - Singer in courtyard (uncredited)
Gigi Ledron
(uncredited)
Lucien Rolland
Archivist (uncredited)
Joanna Theobalds
Lady in Nightclub (uncredited)