The villain foreshadows his future plans and hints toward the philosophy that makes Laconia such a massive threat in The Expanse's future timeline. Winston Duarte's appearance in The Expanse season 6 clearly isn't a mere fan-pleasing cameo - it's a fully-fledged character introduction. Fans of The Expanse's book series will instantly recognize Winston Duarte as the story's next major antagonist after Marco Inaros. Paolo Cortázar then rushes into the room, excitedly bringing good news from his efforts to activate Laconia's dormant alien spacecraft using the Protomolecule sample stolen from Fred Johnson. He attends the wake of Cara's deceased brother, then talks with the young girl about Mars' dream dying in order for Laconia to flourish as a new civilization. The Martian has been mentioned and alluded to as one of the ringleaders behind The Expanse season 5's rogue defectors, but 'Redoubt' marks Duarte's first proper onscreen appearance. The Expanse season 6 debuts Dylan Taylor as Laconia's Admiral Winston Duarte. Related: The Expanse's Canterbury Reference Ties Into Holden's Episode 3 Decision In an even bolder flex, The Expanse season 6, episode 4 ('Redoubt') drops the clearest future setup yet.

Nevertheless, those closing episodes have teased several major events from later books - Cara's story on Laconia, further clues regarding the mysterious alien race that wiped out the Protomolecule's creators, etc. Comprising only 6 episodes, The Expanse season 6 is, in official terms at least, the show's conclusion.

Corey's sci-fi novels would run for a single further season on Amazon Prime. Shortly ahead of The Expanse season 5's premiere in 2020, Alcon Entertainment confirmed the live-action adaptation of James S.A. And that means The Expanse as a whole will end with Marco as the final villain.

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