The original 9-1-1 cast featured many big names, including Connie Britton as Abby Clark, who promptly left the series following the season 1 finale and moved on to other projects. Before joining the 9-1-1 cast, Britton was most known for her award-winning role as Tami Taylor in Friday Night Lights, which is considered by many to be one of the best TV shows of all time. However, Britton is also recognized for starring in Spin City, American Horror Story season 1, and Nashville. So, it’s easy to see why her casting in 9-1-1 was exciting.

https://screenrant.com/connie-britton-projects-after-9-1-1/