The littlest Iron Man has been revealed!

Robert Downey Jr. showed off a few pictures of an adorable 2-month-old Exton Elias during last week’s Tonight Show with Jay Leno.

“I have to exercise just a little restraint. I mean, if you want me to, I will,” the actor quipped, before showing off the adorable photos. “He’s so darn cute, isn’t he?”

When asked about his son’s unusual name, Downey spoke about the family connection. “My wife’s great-uncle Joe was kind of eccentric — when he was in fourth grade, he realized he didn’t have a middle name, so he changed his name to J. Exton,” he said.

This is the first baby for the couple but the second for Downey who has an 18-year-old son Indio from his previous marriage. Congratulations again!