Elenco Principal da Temporada 12

1. 

   엘렌 폼페오

   Meredith Grey

2. 

   Chandra Wilson

   Miranda Bailey

3. 

   산드라 오

   Cristina Yang

4. 

   James Pickens Jr.

   Richard Webber

5. 

   Kevin McKidd

   Owen Hunt

6. 

   캐서린 헤이글

   Izzie Stevens

7. 

   Justin Chambers

   Alex Karev

8. 

   T.R. Knight

   George O'Malley

9. 

   Sara Ramirez

   Callie Torres

10. 

    패트릭 뎀시

    Derek Shepherd

11. 

    에릭 데인

    Mark Sloan

12. 

    Chyler Leigh

    Lexie Grey

Convidados Especiais 20

1. 

   브룩 스미스

   Erica Hahn

2. 

   Steven W. Bailey

   Joe

3. 

   Gloria Garayua

   Intern Graciella

4. 

   Carl Lumbly

   Kurt Walling

5. 

   George Newbern

   Stan Mercer

6. Saige Thompson

   Lindsay Herman

7. 

   Colleen Flynn

   Nancy Mercer

8. Candice Afia

   Intern Laura

9. 

   레슬리 오돔 주니어

   P.J. Walling

10. Molly Kidder

    Intern Megan

11. 

    Joe Williamson

    Intern Pierce

12. 

    Winston Story

    Intern Leo

13. 

    Amrapali Ambegaokar

    Intern Dani

14. 

    Tymberlee Hill

    Intern Claire

15. 

    Mark Saul

    Intern Steve

16. 

    Eileen Fogarty

    Mrs. Chen's Sister

17. Rajni Kareer

    Mrs. Patel

18. 

    Ren Hanami

    Ms. Chen

19. Joyce Brew

    Nurse

20. 

    Janina Gavankar

    Intern Lisa

Equipa Técnica 2