Michelle Williams welcomed her first daughter, Matilda Rose, with then-boyfriend Heath Ledger in 2005. She later married Thomas Kail, with whom she has three children born in 2020, 2022, and 2025. Despite her busy career in film and television, Williams keeps her family life completely private.
After dating Heath Ledger for a year, Williams gave birth to Matilda Rose. Years later, Matilda played a special role in connecting Williams and Thomas Kail, who later married and had their first son, Hart, in 2020.
Williams and Kail welcomed two more children in 2022 and 2025. The arrival of the youngest child was a complete surprise to the public, with Williams keeping details such as names, genders, and birthdays private.
"My heart obviously belongs to my children. They tug at it the most," Williams shared in a January 2023 interview with Entertainment Weekly.
In November 2022, a source told Us Weekly that Williams is "soaking up the joy" of her family life. Although she stars in major projects like Dawson's Creek, The Greatest Showman, and Dying for Sex, she prefers to shield her children from the public eye.
Michelle Williams cherishes her four children deeply, maintaining their privacy while balancing a successful acting career.