Damien Boisseau
Роль(и): Narrator (voice)
Laurent Cavrois
Роль(и): Self - President of LISEA from 2014 to 2017
Gilles Godard
Роль(и): Self - Project director of COSEA from 2014 to 201
Bertrand Lemoine
Роль(и): Self - Engineer, architect and historian
Stéphane Carrer
Роль(и): Self - Construction director of the Dordogne viaduct
