Michelle Williams is a mom of four. The actress, 44, quietly welcomed her fourth child, and third with husband Thomas Kail. The family was spotted in their New York neighborhood, with a source telling People that the couple welcomed their newest addition via surrogate six weeks ago.

The couple looked elegant at the New York City premiere of Williams' new FX seriesMichelle Williams and Thomas Kail had a date night to die for.The actress, 44, and the Tony-winning stage director, 48,

Michelle Williams and Thomas Kail are Hollywood’s quietest power couple. She’s a multi-award-winning actress with a lengthy résumé of iconic titles like Brokeback Mountain, My Week with Marilyn and Manchester by the Sea. He’s a multi-award-winning director and producer who's taken part in massive productions like Hamilton and Moana.