Season 4 of Resident Alien consists of 10 episodes. The season aired weekly on Fridays from June 6, 2025, to August 8, 2025, on USA Network and SYFY. This is the final season of the series. The episode count for Season 4 is the same as Season 1, and slightly more than Season 3, which had 8 episodes. Season 2 had more episodes with a total of 16.