January 08, 2010 04:15 PM

Jen Lowery/Startraks

It’s a boy for Sarah Chalke!

The Scrubs star and fiancé Jamie Afifi, an entertainment lawyer, welcomed son Charlie Rhodes Afifi on Christmas Eve, her rep confirms to PEOPLE exclusively.

The baby boy is the first child for the actress, 33, and James, 36, who were engaged in Dec. 2006. The couple announced the pregnancy in August.

Charlie will have some company in the Scrubs nursery — Sarah’s costar Judy Reyes welcomed daughter Leila Rey in November.

— Julie Jordan

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