Anne Dudek

Anne Dudek and her painter-husband, Matthew Heller, are celebrating the birth of their new son.

The couple's first child, Akiva, arrived on Dec. 14.

"He is happy and healthy," new dad Heller tells Us. "As for me, I now have a never ending smile!"

Dudek, who played House's Amber until the "Cutthroat Bitch" was killed off last season, now appears on Mad Men as Don and Betty Draper's nosy neighbor, Francine.