Article continues below advertisementMichelle Williams and Thomas Kail welcomed another baby!The Blue Valentine star confirmed on the Monday, August 18, episode of Jimmy Kimmel Live! that her and Kail's third baby had been born via surrogate after months of speculation about the couple adding another little one to their family.Williams and Kail also share their son, Hart, 5, as well as a second baby born in 2022 - whose name has not yet been revealed to the public. The Dawson's Creek actress is additionally a mom to her and late ex Heath Ledger's 19-year-old daughter, Matilda.