Resident Alien, including Harry, is back for a fourth season, and—in his own words from the recently released trailer—he’s a basic bitch. He’s also an alien who will apparently be going through a lot in the show’s upcoming episodes, including getting replaced on Earth by a praying mantis-like alien pretending to be him.
Here’s the official synopsis for the upcoming episodes:
Resident Alien season four starts with Harry (Alan Tudyk) and his baby Bridget stuck in prison on the Grey Moonbase, while a shape-shifting Alien called a Mantid (also Alan Tudyk) has taken over his body on Earth passing himself off as the real Harry Vanderspeigle. Harry manages to escape the Greys and arrives back on Earth for a showdown with the Mantid Alien, but soon finds he may not have what he needs to finish the job. Asta (Sara Tomko) and D’arcy (Alice Wetterlund) struggle to keep a secret from Ben (Levi Fiehler) and Kate (Meredith Garretson), who are both desperate to find answers to what has been happening to them. Sheriff Mike (Corey Reynolds) and Deputy Liv (Elizabeth Bowen) attempt to solve some mysterious deaths in Patience that Sheriff Mike is beginning to think aren’t caused by anything human.
The coming season also sees Tudyk make his television directorial debut, helming the first two episodes. In addition to the returning core cast, the show will also see the return of Gary Farmer, Gracelyn Awad Rinke, Jenna Lamia, Sarah Podemski, Linda Hamilton, Enver Gjokaj, Terry O’Quinn, and Edi Patterson. Jewel Staite and Stephen Root also appear as new guest stars.
Resident Alien Premieres Friday, June 6, 2025, at 11:00 p.m. ET/PT and 10:00 p.m. CT on USA and SYFY.
Check out the trailer below.
