It’s a baby girl for TV star Sarah Jane Morris! The 36-year-old actress and her husband, the musician Ned Brower, welcomed their new daughter on Saturday, February 1.

Sarah shared the happy news via her Twitter, telling her thousands of followers, “Happy to share the good news that I am officially done being pg & am now mother to little GIRL.”

In the same tweet, the proud mama also revealed her new baby’s name: Beau Katherine. “In LOVE!” she added of her family’s latest addition.

Beau joins a big brother, Emmett Andrew, who just turned 4 on January 24.

Sarah starred as Special Agent Erica Jane “EJ” Barrett on NCIS from 2011 to 2012 and, before that, as Julia Walker on the ABC series Brothers & Sisters from 2006 to 2009. She’s also had guest roles on shows including Castle, Body of Proof, and Criminal Minds and even before then popped up on the likes of Boston Public and Felicity.

Her husband is a drummer and vocalist in the rock band Rooney as well as a model and actor. The couple will be celebrating their nine-year anniversary later this month on February 19, making the past few weeks big ones for the Morris-Brower clan.

Congratulations to the family and welcome to one talented group, baby Beau!

Sources: People, Sarah Jane Morris on Twitter

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!