News Robert Downey Jr. Baby News Published 7:32 AM PDT, August 31, 2011 Getty Images On-screen superhero Robert Downey Jr. has a baby on the way with wife Susan Downey. A rep for the 46-year-old Iron Man actor confirmed to ET that his wife of six years is pregnant and due to give birth early next year."Robert and Susan could not be more excited over this news," Robert's reptold People.com. "They can't wait to welcome this new baby into their wonderful family." The actor already has one son, 17-year-old Indio, with his ex-wife Deborah Falconer.