Law is going to be a dad again this spring. The actor and his ex, Catherine Harding, are expecting a baby and are "wholeheartedly committed to raising their child," his rep told PEOPLE. This is Law's fifth child: He has three with ex-wife Sadie Frost (sons Rafferty, 18, and Rudy, 12, and daughter Iris, 14) and another daughter, Sophia, 5, with model Samantha Burke.