RESIDENT ALIEN Season 4 Trailer, Featurette, Images and Posters

The fourth season of the sci-fi mystery dramedy series "Resident Alien" premiered on June 6, 2026 on Syfy and USA Network simultaneously at 11 p.m. ET/PT. Created by Chris Sheridan, the show stars Alan Tudyk, Sara Tomko, Corey Reynolds, Alice Wetterlund, Levi Fiehler, Judah Prehn, Elizabeth Bowen and Meredith Garretson. Jewel Staite and Stephen Root guest star in Season 4.

We occasionally recommend interesting products and services. If you make a purchase by clicking one of the links, we may earn an affiliate fee.

Find out more about the series after the jump.

Click the links below to jump directly
to the selected section:

Synopsis

Trailers and TV Spots

Featurettes

Pictures

Posters

SYNOPSIS

JUMP BACK TO TOP

""Resident Alien" Season 4 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"