Julia Stiles Welcomed Baby No. 3 With Preston Cook 5 Months Ago

The '10 Things I Hate About You' star is already mom to 6-year-old son Strummer Newcomb and 2-year-old Arlo. Party of five! Julia Stiles is opening up about welcoming her third child with her husband, Preston J. Cook. In a new interview with The New York Times, the 43-year-old actress casually revealed the new addition to her family while promoting her directorial debut, Wish You Were Here. "I'm kind of like a bundle of emotions, because I have a 5-month-old …