Move over, Chicago Fire — there’s a new sheriff (and alien) in town. Resident Alien, the offbeat sci-fi dramedy starring the endlessly versatile Alan Tudyk, has officially ousted the long-reigning NBC hit from its perch on Peacock’s Top 10 list. With the arrival of its much-anticipated Season 4 on June 6, the SyFy/USA hybrid has not only claimed the No. 7 spot but is already eyeing another victim: Chicago P.D., which currently sits just one rung higher.
Backed by a dazzling 98% critics’ score on Rotten Tomatoes, Resident Alien has proven that it’s not just a cult favorite — it’s a breakout streaming force. The series blends sharp comedy, heartfelt moments, and alien mischief to tell the story of Dr. Harry Vanderspeigle, an extraterrestrial who crashes on Earth and takes over the body of a small-town doctor. Originally sent to destroy humanity, Harry’s plans are hilariously sidetracked as he begins to warm to the quirky people around him.
Alan Tudyk, long hailed as a genre legend, is at the heart of the show’s success. From Wash in Firefly to the sarcastic droid K-2SO in Rogue One and Andor, to a string of scene-stealing animated roles in Moana, Wreck-It Ralph, and Disney’s Wish, Tudyk has made a career out of bringing unusual characters to life — and Harry might be his weirdest (and most lovable) yet.
The Stellar Cast Behind Tudyk’s Alien Antics
Tudyk isn’t the only one delivering standout performances. The ensemble cast of Resident Alien is packed with talent.
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Sara Tomko shines as Asta Twelvetrees, Harry’s human confidante and conscience. Viewers may recognize her from Once Upon a Time or HBO’s The Leftovers.
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Corey Reynolds brings gravitas and comedic edge as Sheriff Mike Thompson, a man perpetually suspicious and perpetually out of the loop.
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Alice Wetterlund, known for Silicon Valley and People of Earth, adds fire and flair as D’Arcy Bloom, a former Olympic skier turned bartender with a wild streak and a heart of gold.
Also lending heart to the show:
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Levi Fiehler plays sweet but overwhelmed Mayor Ben Hawthorne, whose good intentions often spiral hilariously out of control.
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Elizabeth Bowen is the quietly sharp Deputy Liv Baker, often steps ahead of everyone else.
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Rounding out the recurring roster are Gary Farmer (Reservation Dogs) as Asta’s grounded father Dan, Mandell Maughan (Bajillion Dollar Propertie$) as tough-as-nails government agent Lisa Casper, and Alex Barima (Supernatural) as CIA operative David Logan.
With its razor-sharp writing, quirky heart, and unexpected emotional depth, Resident Alien is no longer just a sci-fi underdog. It’s a streaming powerhouse — and with the way it’s climbing the charts, it might just be the alien invasion Peacock didn’t see coming.
