Grey’s Anatomy’s Departed Doctors: Where Are They Now? (PART 2)
T.R. Knight as George O’Malley
One of the biggest tearjerkers on this list, at the end of season five, George had just decided to enlist as a trauma surgeon in the army and was on his way to do so when he saved a woman from getting hit by a bus, only to be hit himself. He was in such bad shape when he got to the hospital that no one recognized him until he used his finger to write his nickname, 007, in Meredith’s hand. They were unable to save him, and he tragically died.
After several tumultuous seasons behind the scenes (including Isaiah Washington using the f-word while allegedly referring to him), Knight struggled with some of George’s storylines and the fact that George barely appeared in the beginning of season five, and asked to be released from his contract.
Knight returned to Shondaland in 2017 for an arc on The Catch, and has also appeared on The Good Wife, 11.22.63, and Genius, among other series. In 2019, he started voice acting for The Bravest Knight before departing in 2024. He also appeared in HBO Max series The Flight Attendant with Kaley Cuoco between 2020 and 2022.
Brooke Smith as Erica Hahn
Erica Hahn and Callie Torres started a relationship that really may have gone somewhere, until Erica learned about the time Izzie Stevens cut Denny Duquette’s LVAD wire in attempts to save his life. The heart that then went to Denny was taken from one of Erica’s patients. When Callie refused to report the situation, Erica up and left the relationship and her job in early season five.
Brooke Smith went on to appear in Bosch, Bates Motel, Supergirl, The Good Doctor, Chicago Med, and The Good Fight, and the 2019 film Bombshell.
Most recently, she had arcs in Ryan Murphy‘s Grotesquerie, The Recruit, The Hunting Party and Chicago Fire. 
Brandon Scott as Intern Ryan
Intern Ryan disappeared in early season six and Brandon Scott most recently starred on Netflix’s Dead To Me, 13 Reasons Why, This Is Us and The Good Doctor.
Molly Kidder as Intern Megan
For all the drama that most Grey’s interns tend to cause, Megan just may take the scalpel. She got into a love triangle with Steve and Pierce, as she was dating Pierce, but slept with Steve, and then Pierce wanted to kill Steve, and Megan got pregnant by Steve, and then she later married Steve, and she hasn’t been seen since season six after Derek Shepherd rehired her.
Molly Kidder has done a few acting gigs since Grey’s, including a guest spot on Outsourced in 2010 and some independent films. She also appeared as an extra in Ghosts in 2025.
Joe Williamson as Intern Pierce
Pierce, one corner of the Megan/Pierce/Steve love triangle, was eventually fired in a round of layoffs and left in season six. Joe Williamson has since appeared on shows like Here and Now and the 2019 film Ford v Ferrari with Christian Bale and Matt Damon.