Elenco Principal da Temporada 12

1. 

   Ellen Pompeo

   Meredith Grey

2. 

   Chandra Wilson

   Miranda Bailey

3. 

   Sandra Oh

   Cristina Yang

4. 

   James Pickens Jr.

   Richard Webber

5. 

   Kevin McKidd

   Owen Hunt

6. 

   Katherine Heigl

   Izzie Stevens

7. 

   Justin Chambers

   Alex Karev

8. 

   T.R. Knight

   George O'Malley

9. 

   Sara Ramirez

   Callie Torres

10. 

    Patrick Dempsey

    Derek Shepherd

11. 

    Eric Dane

    Mark Sloan

12. 

    Chyler Leigh

    Lexie Grey

Convidados Especiais 12

1. 

   Brooke Smith

   Erica Hahn

2. 

   Cliff DeYoung

   Phillip Loomis

3. 

   Lauren Stamile

   Nurse Rose

4. 

   Mariette Hartley

   Betty Kenner

5. 

   John Getz

   Michael Breyers

6. 

   Bernadette Peters

   Sarabeth Breyers

7. 

   Kathy Baker

   Anna Loomis

8. Molly Kidder

   Intern Megan

9. 

   Amrapali Ambegaokar

   Intern Dani

10. 

    Mark Saul

    Intern Steve

11. 

    Terrance Christopher Jones

    Paramedic

12. 

    Joy Osmanski

    Intern Lucy

Equipa Técnica 2