Resident Alien Season 4 Begins

Harry is trapped on the Grey Moonbase. A shape-shifting alien is on Earth pretending to be him. Season 4 brings big changes and surprises.

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Strange deaths, hidden secrets, and Kate’s missing baby push the story forward. Harry’s journey gets harder as he tries to stop alien threats.

New Twists and Storylines

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Cast: Old and New Faces

Alan Tudyk returns as Harry. The cast includes Sara Tomko, Corey Reynolds, and new faces like Stephen Root and Jewel Staite.

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Kate’s Baby Is Missing

Kate learns she was pregnant. The Greys took her baby to the Moonbase. She and Harry must work together to bring her child home.

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When and Where to Watch

Season 4 airs June 6, 2025, on USA Network and SYFY. New episodes stream a week later on Peacock Premium and Premium Plus.

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Where It’s Filmed

Resident Alien is filmed in Vancouver and Ladysmith, British Columbia. The town of Patience is based on Ladysmith’s quiet charm and mountain views.

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Full Plot and Cast Details Here

Want the full story, cast updates, and all surprises? Click now for everything about Resident Alien Season 4 before the first episode drops.

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