Kate Walsh (Addison Montgomery)

Kathleen Erin "Kate" Walsh (born October 13, 1967) is an American film and television actress, currently known for her role as Dr. Addison Montgomery on the ABC dramas Grey's Anatomy and Private Practice. Walsh was born in San Jose, California and grew up in Tucson, Arizona. Her father, a native of Navan in County Meath, Ireland, was Irish American, and her maternal grandfather came from Italy. Her mother Angela lives in Nevada and Walsh has four older siblings. She has two sisters and two brothers, Sean and Joe, who are film-makers. Walsh studied at the University of Arizona for a while where she got involved in regional theater. She now lives in Los Angeles. She was raised Roman Catholic.