Kate Walsh is an American actress. She first gained recognition in 1997 on ABC's 'The Drew Carey Show.' Walsh is known for playing the recurring character Dr. Addison Montgomery on 'Grey's Anatomy.' She also starred on the spin-off series 'Private Practice' and appeared on the Netflix series 'Emily in Paris,' 'The Umbrella Academy' and '13 Reasons Why.' Walsh's most famous films include 'The Perks of Being a Wallflower' and 'Girls Trip.'