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Daycare at Seattle Grace is getting fuller by the day!

Jessica Capshaw, 34, who plays Arizona Robbins on Grey's Anatomy, welcomed baby girl, Eve Augusta, on October 20. Capshaw, the step-daughter of Steven Spielberg, and husband Christopher Gavigan also have a 2-year-old son, Luke.

"The family is thrilled to welcome their newest addition," her rep tells UsMagazine.com.

Eve Augusta marks the latest in the Grey's baby boom: Ellen Pompeo's daughter Stella Luna was born in September 2009 and Eric Dane's daughter Billie Beatrice was born in March.