Romain Duris
as Gustave Eiffel
Pierre Deladonchamps
as Antoine de Restac
Armande Boulanger
as Claire Eiffel
Bruno Raffaelli
as M. Bourgès
Alexandre Steiger
as Jean Compagnon
Philippe Hérisson
as Edouard Lockroy
Damien Zanoly
as Émile Nougier
Clémence Boué
as Madame Lockroy