Saturday Night Live's annual cast changes have begun.

Featured player Luke Null has exited the NBC late-night sketch comedy series after a one-season run, sources confirm to The Hollywood Reporter. He will not return when the Lorne Michaels-created comedy returns in the fall for its 44th season. (NBC declined comment.)

Null first joined SNL in September, alongside fellow newcomers Chris Redd and Heidi Gardner. Their additions helped fill the voids created by the departures of Bobby Moynihan (who had been there for nine seasons), Vanessa Bayer (seven) and Sasheer Zamata (four), who left after the season 42 finale. 

The 28-year-old Null is a musical comedian and improviser who came out of iO Chicago. His credits include 2011 feature The Heart: The Final Pulse.

SNL typically experiences some form of cast turnover every season. Null is the first to exit ahead of season 44. Watch one of his appearances, below.

NBC has not yet set a date for the iconic show's return.

Vulture was the first to report Null's exit.