Robert Downey Jr. and his wife of six years are expecting their first child together early next year.
"Robert and Susan, 38, 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, who reprises his role as Iron Man in the upcoming movie The Avengers, is already a father to Indio, 17, his son with ex-wife Deborah Falconer.
But the news should come as no surprise.
In 2010, while promoting his comedy Due Date, the 46-year-old predicted he'd have another child in 2012.
"I think I will be wrist-deep in doo-doo within 18 months. I'm calling it right here," he said.
"I think we should probably try to have a girl because I don't want another male entity to have to compete," he joked.