Thompson joined the show in 2003, and at the end of the upcoming season, he will leave the show with 12 seasons of SNL under his belt. Thompson was also SNL's first cast member to be born after 1975, the year the show premiered.
Sources close to SNL told TMZ that Thompson tried to leave the show last season but was asked by Lorne Michaels to stay on another year. From TMZ:
Our sources say he's in talks for a new show and plans on moving to L.A. (with his wife and brand new baby) when the season ends.
[Image via AP]