The Eternaut (TV) Cast
The cast of The Eternaut. Updated on June 24, 2025.
8 actors
Ricardo Darín
as Juan Salvo (6 episodes)

Juan Salvo is a key survivor striving to protect his family and friends from the bizarre alien threat.

Carla Peterson
as Elena (6 episodes)

Elena is the devoted partner of Juan Salvo, supporting him amidst the chaos.

César Troncoso
as Alfredo Favalli (6 episodes)

Alfredo Favalli is a thoughtful and analytical friend of Juan, contributing his knowledge to help the group survive.

Andrea Pietra
as Ana (6 episodes)

Ana is a resilient character navigating the dangers of the alien snowfall.

Ariel Staltari
as Omar (6 episodes)

Omar is part of Juan’s group, facing the extreme challenges of the alien invasion.

Marcelo Subiotto
as Lucas (6 episodes)

Lucas is among the survivors, working with others to find safety and answers.

Claudio Martínez Bel
as Polsky (6 episodes)

Polsky is involved in the quest for survival amid the extraterrestrial danger.

Mora Fisz
as Clara Salvo (6 episodes)

Clara Salvo is a pivotal family member of Juan, integral to his motivations.

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