updated 08/31/2011 AT 9:00 AM ET
•originally published 08/31/2011 AT 10:20 AM ET
Big screen superhero Robert Downey Jr. has some super news: he’s expecting a child with wife Susan Downey.
The actor, who reprises his role as Iron Man in the upcoming movie The Avengers, and his wife of six years are set to welcome their first child together early next year.
“Robert and Susan could not be more excited over this news,” his rep tells PEOPLE. “They can’t wait to welcome this new baby into their wonderful family.”
The actor, 46, is already a father to Indio, 17, his son with ex-wife Deborah Falconer.