Elenco - Who We Were
Manfred Zapatka
Self - Narrator (voice)
Alexander Gerst
Self - Astronaut
Sylvia Earle
Self - Oceanographer
Dennis J. Snower
Self - EconomistFelwine Sarr
Self - PhilosopherJanina Loh
Self - Philosopher
Matthieu Ricard
Self - Buddhist Monk