Actress · DirectorKate WalshOctober 13, 1967(56 years old)San Jose, California, USAKathleen 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.SocialsInstagramTwitterFacebookIMDbKnown forGrey's AnatomyAddison Montgomery / Addison MontgomeryThe Perks of Being a WallflowerMotherFargoGina HessThe Umbrella AcademyThe Handler13 Reasons WhyOlivia Baker / Olivia BakerAmerican Dad!Teacher (voice)1408Mike Enslin's Ex-wife (uncredited)Girls TripElizabeth DavelliLegionSandra AndersonCSI: Crime Scene InvestigationMimosaUnder the Tuscan SunGraceKicking & ScreamingBarbara Weston