https://deadline.com/2022/06/snowpiercer-canceled-end-season-4-tnt-1235047908/#:~:text=%E2%80%9CWe%20can%20confirm%20that%20Snowpiercer,to%20life%20in%20thrilling%20ways.

The TNT post-apocalyptic drama will come to an end after the upcoming fourth season, which is currently in production. Snowpiercer's cancelation marks an end to scripted programming on TNT. "I hear the cast’s options were coming up and were not picked up, releasing the actors to book other jobs," reports Deadline's Nellie Andreeva. The move comes as TNT and TBS are moving away from scripted programming (https://variety.com/2022/tv/news/tnt-tbs-scripted-programming-development-scrapped-warner-bros-discovery-1235241348/) following the WarnerMedia-Discovery merger. Snowpiercer and Animal Kingdom, which is currently airing its final season, are the final scripted shows on TNT's roster. The TV adaptation of Bong Joon-ho’s 2013 movie Snowpiercer had a long road to the TV screen. It was first put into development in 2015, but didn't premiere until May 2020. “We can confirm that Snowpiercer will end after a successful, multi-season run on TNT,” a TNT spokesperson said in a statement to Deadline. “Its talented writers, actors and crew took an extraordinary premise and brought it to life in thrilling ways. It was critically-acclaimed, had a significant impact on the post-apocalyptic genre, and now remains in the hearts and minds of fans forever.”