""
Damien Boisseau
as Narrator (voice)
Laurent Cavrois
as Self - President of LISEA from 2014 to 2017
Gilles Godard
as Self - Project director of COSEA from 2014 to 201
Bertrand Lemoine
as Self - Engineer, architect and historian
Stéphane Carrer
as Self - Construction director of the Dordogne viaduct
Romain Nicolas
as Self - Technical director at Dodin Campenon Bernard
Olivier Gouin
as Self - Industrial director at MESEA
Christophe Pélissié du Rausas
as Development director at Vinci
Nicolas Notebaert
as Self - Managing director of Vinci Concessions
Hubert Bonin
as Self - Historian
Anne-Laure Téchené
as Self - Project director at SNCF Gares & Connexions
Gérald Bassez
as Self - Civil engineering expert at MESEA
Caroline Demilcamps
as Self - Environmental manager at LISEA
Hervé Le Caignec
as Self - President of LISEA
Christophe Berger
Jean-Bruno Delrue
as Self - President of MESEA
Mathieu Cailleteau
as Self - Track and catenary maintenance team leader
Delphine Rodrigues da Silva
as Self - Assistant track and catenary maintenance team leader
Gilbert Maurel
as Self - Assistant director of the Villognon maintenance base
Nicolas Quatremère
as Self - Operations Manager at SNCF Réseau
Alain Baradat
as Self - Scheduling, planning, and railway interfaces manager
Valérie Vesque-Jeancard
as Self - President of Vinci Railways
Olivier Lacaze
Writer
Director
Cédric Corre
Camera Operator
Sound
François Davin
Robert Iseni
Hugues Phily
Augustin Farges
Editor
Vanessa Colombel
Color Grading
Guillaume Gizard
Sound Mixer
Émilie Deyzac
Graphic Designer
Raphaëlle Girotto
Producer
Lou Mastroianni
Lynsey Haguenauer
Faustine Deffobis
Administration
Florence Glineur
Emmanuelle Marti
Alexandre Turpin
