Episode 4 S01 E04

Alexander Karim (as Dr. Sigur Johanson) Cécile de France (as Dr. Cécile Roche) Leonie Benesch (as Charlie Wagner) Joshua Odjick (as Leon Anawak) Takehiro Hira (as Riku Sato) Krista Kosonen (as Tina Lund) Rosabell Laurenti Sellers (as Alicia Delaware) Barbara Sukowa (as Prof. Katherina Lehmann) Oliver Masucci (as Jasper Alban) Klaas Heufer-Umlauf (as Luther Roscovitz) Lydia Wilson (as Sara Thompson) Takuya Kimura (as Aito Mifune) Sharon Duncan-Brewster (as Samantha Crowe) Michele Favaro (as Max) Alba Gaïa Bellugi (as Isabelle Roche)

ocean ice melting marine biologist scientist ecology oceanic expedition ecological footprint ecological disaster