Resident Alien Season 4: Cast, Plot, Where to Stream - Netflix Tudum

  • Deep Dive

    Resident Alien Season 4: What to Know About the Latest Installment

    A new season means a new case of stolen identity. Stream it on Netflix now.

    By Krutika Mallikarjuna
    June 6, 2026

When an alien sent to Earth on a nefarious mission to kill all humans crash-lands in the small mountain town of Patience, Colorado, he realizes he must blend in with the locals in order to survive long enough to find his lost ship and resume his quest. He takes on the identity of the local doctor to hide in plain sight, but the last thing he expects is to fall in love with the quirky townspeople and humanity’s peculiar way of life. What’s an alien to do when he’s got a moral quandary over mass murder? Created by Chris Sheridan (Family Guy), Resident Alien stars Alan Tudyk, Sara Tomko, and Alice Wetterlund. The fourth and final season of the sci-fi dramedy — now streaming on Netflix — features Tudyk’s fellow Firefly castmate Jewel Staite and two-time RuPaul’s Drag Race winner Jinkx Monsoon in guest star roles. 

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When will Resident Alien Season 4 be released?

Stream all four seasons now.

Who’s in the cast of Resident Alien?

  • Alan Tudyk (The Twits) as Harry Vanderspeigle
  • Sara Tomko (Sneaky Pete) as Asta Twelvetrees
  • Corey Reynolds (The Closer) as Mike Thompson
  • Alice Wetterlund (People of Earth) as D'arcy Bloom
  • Levi Fiehler (Mars) as Ben Hawthorne
  • Judah Prehn (Mythic Quest) as Max Hawthorne
  • Meredith Garretson (The Offer) as Kate Hawthorne
  • Elizabeth Bowen (Laid) as Deputy Liv Baker
  • Gary Farmer (The Red Road) as Dan Twelvetrees
  • Stephen Root (Widow’s Bay)as Ed Vanderspeigle
  • Diana Bang (The Order) as Ellen Cho
  • Alex Barima (The Hollow) as David Logan
  • Paul Piaskowski (Big Sky) as Robert Hutchins 
  • Jewel Staite (Firefly) as Jules Gardner
  • Jinkx Monsoon (RuPaul’s Drag Race) as the voice of Bruce Dern
  • Andrea Geones (Daddy Don’t Go, Please Save Mommy) as the voice of Bridget
  • Clancy Brown (Starship Troopers) as the voice of the Mantid alien

What happens in Resident Alien Season 4?

Following the Season 3 finale in which Harry (Tudyk) and friends successfully raided the Greys’ moonbase and stopped them from terraforming Earth (which in turn would kill all humans), the crew returns to Patience believing they can start a new chapter in their lives — despite mourning the (supposed) loss of Harry’s half-human, half-alien son Bridget to enemy forces at the base. But all is not as it seems: the Harry that’s back on Earth is actually a shapeshifting alien called the Mantid (Brown) who had been held prisoner by the Greys. Using Harry as cover, the Mantid begins to make his own plans to conquer the little town of Patience, and then, the world. When Harry’s friends begin to suspect something’s wrong due to the Mantid’s odd behavior, he takes drastic measures to ensure his secret doesn’t get out.

Meanwhile, at the Greys’ moonbase, the real Harry and his son Bridget sit in a jail cell plotting their way home. With the help of a human abductee and fellow prisoner named Robert Hutchins (Piaskowski), Harry manages to trick Bruce Dern (Monsoon), their Grey alien guard, into freeing them in exchange for passage to Earth. Harry and Bridget rush home to their loved ones after a month in confinement, but have no idea of the new obstacles awaiting them. 

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