NEW YORK — Kate McKinnon and Pete Davidson are among those departing from "Saturday Night Live," leaving the sketch institution without arguably its two most famous names after Saturday's 47th season finale.

Aidy Bryant and Kyle Mooney will also leave the cast after the episode hosted by Natasha Lyonne.

The departures represent one of the biggest cast shake-ups in years on a show that has seen unusual steadiness in recent seasons.

McKinnon, 38, won two Emmys and was nominated for nine in her 10 seasons on the show, during which her impressions included Hillary Clinton, and former Attorney General Jeff Sessions.

Her comic chops with characters like alien abductee Miss Rafferty frequently drove castmates and guest hosts to lose it live on air.

McKinnon opened the show with an out-of-this-world skit, and said her final goodbyes on "Earth."

"I love ya, thanks for letting me stay awhile. Live from New York, it's Saturday night," she said to open the show.

The 28-year-old Davidson joined the cast in 2014 and has appeared in eight seasons. His own outsize personality often outshone the characters he played.