Mary-Louise Parker's Kids Join Her for Rare Appearance at Broadway Opening!

Mary-Louise Parker poses for a photo with her kids Caroline and William while attending the opening night after party for her play The Sound Inside on Thursday (October 17) in New York City.

The 55-year-old actress Tony and Emmy-winning actress rarely makes public appearances with both of her kids. The last time was at her previous Broadway opening for Heisenberg in 2016!

William, 15, is Mary-Louise‘s son with ex-boyfriend Billy Crudup and he was named after his dad. Caroline was adopted from Ethiopia as a baby girl in 2007.

Also joining Mary-Louise at the party was her co-star from The Sound Inside, Will Hochman. The two of them are earning rave reviews for their performances in the new play, which is now running through January 12.

MORE PHOTOS: See all the stars who attended the opening night performance!