Addison Montgomery
Addison Forbes Montgomery, M.D., is a fictional character portrayed by actress Kate Walsh in the ABC medical drama series Grey's Anatomy and its spin-off Private Practice.[1]
She is depicted as a board-certified obstetrician-gynecologist and neonatal surgeon specializing in maternal-fetal medicine and fetal surgery.[2][3]
Introduced in the Season 1 finale of Grey's Anatomy as the estranged wife of neurosurgeon Derek Shepherd, Montgomery's character navigates complex professional challenges and personal relationships at Seattle Grace Hospital before relocating to Los Angeles.[4]
In Private Practice, which aired from 2007 to 2013, she serves as the lead protagonist, joining the Oceanside Wellness Group as an attending physician and later becoming Director of Medical Affairs at St. Ambrose Hospital, where her expertise in high-risk pregnancies and neonatal care drives key storylines.[1]
Walsh reprised the role in guest appearances across multiple seasons of Grey's Anatomy, including Seasons 2 through 8, and returns in Seasons 18 and 19 to mentor interns at the renamed Grey Sloan Memorial Hospital.[1][5]
The character's portrayal earned Walsh praise for embodying a competent, resilient professional woman, contributing to the shows' exploration of medical ethics, interpersonal dynamics, and work-life balance in high-stakes environments.[3]