Cast
14 peopleH
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Hyppo AudouyHimself - Narrator (voice)
Stéphane ChassagneHimself - Urologist
Martin KnightHimself - Bioengineer
Steven SoiferHimself - Psychologist
Sally MagnussonHerself - Writer
Martin LaraHimself - Urotherapist
Wu YunhuaHimself - Therapist
Ximin DuHimself - Urotherapist
Duaqing PeiHimself - Researcher
Shaker MousaHimself - Researcher
Scott ChenHimself - Ecological Farmer
Jes ThomsenHimself - Greentech Director
Gerardine BotteHerself - Researcher
Mike JettenHimself - Microbiologist