Josh Hartnett quietly welcomed fourth child with wife Tamsin Egerton

The 45-year-old actor subtly announced that he and Tamsin, 35, had privately welcomed baby number four during an appearance on the red carpet at Hollywood's Screen Actors Guild (SAG) Awards on Saturday. During the event, the Oppenheimer actor was asked by outlet Gold Derby if he was aware of the "Josh Hartnett Renaissance" trend on social media, to which he simply replied, "I have not. I have four kids, I live in the countryside. I'm busy either working or taking care of them, but thank you. That's really kind."