Kate Walsh shared the thrilling news herself in a video posted on the Grey’s Anatomy Twitter Page with a caption, “I need the day off. For THIS. NEWS!!! @katewalsh” with an exploding head, a star-struck, and loudly crying face emojis.

“Well, well, well, would you look who it is. That’s right, my loves, Dr. Addison Montgomery is coming back to Grey Sloan Memorial Hospital and I’m so excited to be home again joining Shonda, Ellen, and the rest of the incredible cast,” the entertainer said.
“This season 18, whew! — Just wait until you see what she has in store for you. The new season premieres September 30 on ABC,” she added.
I need the day off. For THIS. NEWS!!! 🤯🤩😭 @katewalsh pic.twitter.com/1bqBgAaUng
— Grey's Anatomy (@GreysABC) September 2, 2021
She ended the video by saying, “So stay tuned here on Grey’s ABC and make sure you’re following me, @katewalsh for more updates and make her grand return. I’ll see you there.”
Addison is an a-list gynecological and neonatal specialist and Derek Shepherd (Patrick Dempsey’s) repelled spouse. She remained on for a few seasons prior to driving the side project series Private Practice, which circulated from 2007 to 2013.

During her meeting with PEOPLE, the actress uncovered how she couldn’t imagine anything, better than to have one more freedom to walk the lobbies of Grey Sloan Memorial Hospital once more.
“If they could get it done, I’d be happy to come back. It definitely changed my life.”

Reactions to Kate Walsh Reprising Her Role In Grey's Anatomy Season 18
KATE WALSH IS RETURNING TO GREY’S ANATOMY DR. ADDISON MONTGOMERY IS COMING BACK TO US I’M SO USED TO GIVING AND NOW I GET TO RECEIVE 😭💕
@richonnesroyale
KATE WALSH IS RETURNING TO GREY’S ANATOMY DR. ADDISON MONTGOMERY IS COMING BACK TO US I’M SO USED TO GIVING AND NOW I GET TO RECEIVE 😭💕 pic.twitter.com/HpXhZjnygp
— waiting for the rick movies (@richonnesroyale) September 3, 2021
OKAY BUT SEPTEMBER 2ND IS NOW AN OFFICIAL HOLIDAY: KATE WALSH RETURNS TO GREYS ANATOMY AS ADDISON MONTGOMERY DAY
@KEPNERSWILSON
OKAY BUT SEPTEMBER 2ND IS NOW AN OFFICIAL HOLIDAY: KATE WALSH RETURNS TO GREYS ANATOMY AS ADDISON MONTGOMERY DAY pic.twitter.com/wzCbOswerM
— suzy hunt 🦢 (@KEPNERSWlLSON) September 3, 2021
patrick dempsey returned in s17 to save greys’s anatomy and kate walsh is coming back to save s18. DEFINITELY THE BEST TRIO EVER ❤️
@pickdempeo2
patrick dempsey returned in s17 to save greys’s anatomy and kate walsh is coming back to save s18. DEFINITELY THE BEST TRIO EVER ❤️ pic.twitter.com/uPNzVDIoeE
— 💭 (@pickdempeo2) September 3, 2021
IM CURRENTLY SEEING A BROADWAY SHOW AND KATE WALSH IS COMING BACK TO GREYS WHAT THE FUCK?????????????????
@laurjbrown
IM CURRENTLY SEEING A BROADWAY SHOW AND KATE WALSH IS COMING BACK TO GREYS WHAT THE FUCK?????????????????
— laura j. brown (@laurjbrown) September 3, 2021
ABC/Grey's Anatomy knew SVU and OC were going to put up a fight (and have been very tight on ratings most weeks) and they pulled off bringing Kate Walsh back, which has been requested for years. NBC is gonna have to step. it. up.
@twistyscrubs
ABC/Grey's Anatomy knew SVU and OC were going to put up a fight (and have been very tight on ratings most weeks) and they pulled off bringing Kate Walsh back, which has been requested for years.
— c (@twistyscrubs) September 3, 2021
NBC is gonna have to step. it. up.
When you stopped watching Grey's Anatomy 8 years ago but @katewalsh returns #GreysAnatomy
@Briicol
When you stopped watching Grey's Anatomy 8 years ago but @katewalsh returns #GreysAnatomy pic.twitter.com/GhuqgcdMPg
— Marie (@Briicol) September 3, 2021
I STILL CAN'T BELIEVE THAT SHE'LL BE BACK ON GREY'S ANATOMY @katewalsh
@_mcshepherdss
I STILL CAN'T BELIEVE THAT SHE'LL BE BACK ON GREY'S ANATOMY @katewalsh pic.twitter.com/qZGYAj9cI3
— clío | ia 📚 (@_mcshepherdss) September 3, 2021
KATE WALSH RETURNING TO GREYS NEXT SEASON IS WHAT I LIVW FOR
@91STRAITOR
KATE WALSH RETURNING TO GREYS NEXT SEASON IS WHAT I LIVW FOR
— angel loves u (@91STRAITOR) September 3, 2021
kate walsh really went and broke greys twitter huh
@oceansideadie
kate walsh really went and broke greys twitter huh
— emma (@oceansideaddie) September 3, 2021
kate walsh coming back to grey's???? SO TRUE. i suddenly got interested again.
@swiftbensons
kate walsh coming back to grey's???? SO TRUE. i suddenly got interested again.
— julia 🧣 20 days (@swiftbensons) September 2, 2021
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