Los Angeles, Dec. 5 -- 'Grey's Anatomy' star Kate Walsh is set to reprise her iconic role as Dr. Addison Montgomery in an upcoming episode of the ABC medical drama's 22nd season, according to series creator Shonda Rhimes' production company Shondaland, E! News reported.

Shondaland confirmed the news on Instagram, writing, "We're excited to announce the return of Dr. Addison Montgomery to Grey Sloan!"

Kate shared her excitement with a heart-eyed emoji, writing, "Here we go."

Walsh originally joined Grey's Anatomy in 2005 during season one and remained part of the main cast until 2007, when she left to star in the spin-off series Private Practice. She appeared in all six seasons of Private Practice, from 2007 to 2013. Walsh has made recu...