Aug. 31, 2011 at 10:35 AM ET
Robert Downey Jr. and his wife of six years, Susan Downey, are expecting their first child together, PEOPLE reports.
The "Iron Man" star, 46, is a father to 17-year-old Indio, his son with ex-wife Deborah Falconer.
"Robert and Susan could not be more excited over this news," the actor's rep tells PEOPLE. "They can't wait to welcome this new baby into their wonderful family."