9-1-1: Lone Star cast member Sierra McClain, who plays Grace Ryder, is exiting ahead of season 5. Another cast member wrote about the show's upcoming final season on social media. 9-1-1: Lone Star is unlikely to be picked up by another network amid cancellation reports.

An original 9-1-1: Lone Star cast member is exiting the show as the action spinoff faces an uncertain future. With a cast that includes Rob Lowe, Ronen Rubinstein, Natacha Karam, Brian Michael Smith, Rafael L. Silva, Julian Works, Gina Torres, Brianna Baker, Kelsey Yates, and Skyler Yates, the 9-1-1 expansion examines the lives of the police, fire and ambulance departments working at Company 126 in Texas. 9-1-1: Lone Star season 5 is on track to continue that story with new episodes later this year, though it may be the last.

Deadline is reporting that Sierra McClain is exiting 9-...