Dr. George O’Malley is checking out of Grey’s Anatomy. T.R. Knight has confirmed widely-rumored reports that he is leaving ABC ratings-winnning medical drama.

“Leaving ‘Grey’s Anatomy’ was not an easy decision for me to make,” T.R. said in a statement issued to the press on Friday. “I am extremely grateful to have had the opportunity to play this character and will miss my fellow cast and crew very much. I continue to wish them the very best, and wholeheartedly thank all of the fans who have supported me and the show with such passion and enthusiasm.”

Meanwhile, series creator and head writer Shonda Rhimes — whose rumored feud with T.R. reportedly lead to his departure — says, “I think I speak for the entire ‘Grey’s Anatomy’ family when I say we wish T.R. Knight the best in his future endeavors. He is an incredibly talented actor and a person whose strength of character is admired by all of us.”