Julien Bocher
as Narrator (voice)
Nicolas Joseph
as Self - Sewer basic service
Raphaël Morera
as Self - Historian, CNRS
Konstantinos Chatzis
as Self - Historian, Gustave Eiffel University
Christophe Dalloz
as Self - Water and sanitation services manager
Thierry Guffroy
as Self - Instructor
Guillaume Picon
as Self - Historian
Éric Pfliegersdoerfer
as Self - Institutional and internation relations, Eau de Paris
Nordine Ikhlef
as Self - Operation supervisor, Eau de Paris
David Petit
as Self - Water resource and production manager
Frédéric Rocher
as Self - Security manager, Eau de Paris
Richard Horaist
as Self - Manager of the integrated control center, Eau de Paris
