Massie Block (Meredith Grey): After Derrick moved on with Dylan in the 8th grade, Massie decided she was better off without him and she also realized she wanted to be a surgeon. She gets an internship and Westchester Hospital…but how will she feel when she sees who her new boss is?
Claire Lyons (Cristina Yang): is a new intern at Westchester Hospital a long side Massie. Her and Cam broke up after high school because they went to different colleges and they promised each other that they would get back together if they ever saw each other again…so what happens when she does?
Alicia Rivera (Callie Torres): This Spanish beauty traded in her Ralphs for scrubs and is working as a surgical intern at Westchester Hospital with the rest of the PC---minus Dylan…speaking of Dylan, where is she?
Kristen Gregory (Izzie Stevens) : She decided she wanted to be a surgeon half way through her freshmen year at college. When she changed her occupation she also changed her personality…she's now preppy and very upbeat and always looking on the bright side of things.
Derrick Harrington (McDreamy): A head surgeon at Westchester Hospital but when he sees a certain Amber eyed girl is it possible to fall head over heels in love with her again?...and what happens when his past seems to get in the way?
Cam Fisher (McSteamy): Neurologist at Westchester Hospital. He hears about the new interns and couldn't care less, he thinks interns are nothing but trouble because they are new to the whole surgeon thing…but will he change his mind?
Josh Hotz (George O'Malley) : The best plastic surgeon in New York and he is working at Westchester Hospital.
Kemp Hurley (Alex Karev) : Westchester Hospital's resident man whore…he's great at being a surgeon but is terrible at committed relationships. Can one of the new interns change him?
Chris Plovert (Owen Hunt) : Always love soccer but wanted to be a surgeon…which is exactly what he is at Westchester Hospital. A new attending that shows up out of the blue is who he wants.