Resident Alien has a total of 44 episodes spread unevenly across four seasons, but not every run is equal in its quality. That said, every season of Resident Alien is a thoroughly enjoyable experience that brings something new to the table. The immense chemistry among the Resident Alien cast means that, even when there's a lull, there's still plenty to celebrate.

After airing its pilot episode in January 2021, Resident Alien 's ending came in August 2025. The adventures of Alan Tudyk's Harry Vanderspeigle and his friends are an adaptation of the Resident Alien comics by Peter Hogan and Steve Parkhouse. While the first three seasons of the show were made by Syfy , the final run switched to USA Network.

The core group of main characters remains largely intact throughou

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