The series stars Sydney Chandler, Alex Lawther, Essie Davis, Samuel Blenkin, Babou Ceesay, Adarsh Gourav, and Timothy Olyphant in main roles. It is the first television series in the Alien franchise and is set two years before the events of the 1979 film Alien. The series premiered on FX and FX on Hulu on August 12, 2025.