Credit: E. Charbonneau/WireImage for Focus Features

Now that's a nice holiday present: Scrubs star Sarah Chalke gave birth to "healthy baby boy" Charlie Rhodes Afifi on Dec. 24, her rep confirms to

Little Charlie is the first child for the actress, 33, and her fiance, attorney Jamie Afifi. The couple have been engaged since Dec. 2006.

Chalke's the second new Mommy from the Scrubs cast over the past few months: costar Judy Reyes gave birth to daughter Leila Ray in November.