Himself - Narrator (voice)

Hyppo Audouy

Acting

Himself - Urologist

Stéphane Chassagne

Acting

Himself - Bioengineer

Martin Knight

Acting

Himself - Psychologist

Steven Soifer

Acting

Herself - Writer

Sally Magnusson

Acting

Himself - Urotherapist

Martin Lara

Acting

Himself - Therapist

Wu Yunhua

Acting

Himself - Urotherapist

Ximin Du

Acting

Himself - Researcher

Duaqing Pei

Acting

Himself - Researcher

Shaker Mousa

Acting

Himself - Ecological Farmer

Scott Chen

Acting

Himself - Greentech Director

Jes Thomsen

Acting

Herself - Researcher

Gerardine Botte

Acting

Himself - Microbiologist

Mike Jetten

Acting