Resident Alien is an American science fiction mystery comedy-drama television series created by Chris Sheridan, based on the comic book of the same title by Peter Hogan and Steve Parkhouse, that premiered its 10-episode first season on January 27, 2021, on Syfy. It stars Alan Tudyk in the title role. In March 2021, it was renewed for a second season which premiered January 26, 2022. The second season consists of 16 episodes, split into two eight-episode parts; the second half premiered on August 10, 2022. In July 2022, it was renewed for an eight-episode third season, which premiered February 14, 2024. In June 2024, it was renewed for a fourth season that premiered on June 6, 2025, on Syfy and USA Network simultaneously. In July 2025, it was confirmed that the fourth season will be its last.