Sam Waterston is leaving Law & Order after 23 seasons.


– Tony Goldwyn will take over his role as District Attorney Jack McCoy.

– Waterston says he is "grateful" for his time on the show and is "looking forward to what's next."

– He has won an Emmy Award and a Golden Globe Award for his work on Law & Order.

– Waterston is the longest-running actor in the franchise's history.

– He has appeared in more than 500 episodes of the show.

– Law & Order is one of the longest-running dramas in television history.