Walker's announcement comes as “SNL” creator Lorne Michaels is saying that he anticipates changes following the show's historic 50th season. No cast members had announced their departure following the season's conclusion. In an interview with Puck that ran last week, Michaels answered “yes” when asked if he expected to “shake things up.”

Speaking to Puck, Michaels, 80, confirmed that there will be a big cast shakeup for “SNL’s” 51 st season. Last season marked 50 years that the show had been on the air, with NBC airing an “SNL50” anniversary special that saw a slew of celebrities who’ve hosted the show and the return of old favorites.