Elenco Principal da Temporada 8

1. 

   Noah Wyle

   John Carter

2. 

   Anthony Edwards

   Mark Greene

3. 

   Alex Kingston

   Elizabeth Corday

4. 

   Julianna Margulies

   Carol Hathaway

5. 

   Laura Innes

   Kerry Weaver

6. 

   Kellie Martin

   Lucy Knight

7. 

   Eriq La Salle

   Peter Benton

8. 

   Gloria Reuben

   Jeanie Boulet

Convidados Especiais 33

1. 

   George Clooney

   Doug Ross

2. 

   Octavia Spencer

   Maria Jones

3. 

   Bellina Logan

   Kit

4. 

   Conni Marie Brazelton

   Connie Oligario

5. 

   John Aylward

   Donald Anspaugh

6. 

   Jorja Fox

   Maggie Doyle

7. 

   Penny Johnson Jerald

   Lynette Evans

8. 

   Mare Winningham

   Amanda Lee

9. 

   Dennis Boutsikaris

   David Kotlowitz

10. Suzanne Carney

    Janet

11. 

    Deezer D

    Malik McGrath

12. 

    Laura Cerón

    Chuny Marquez

13. 

    Gedde Watanabe

    Yosh Takata

14. Caitlin Alderton

    Skye

15. 

    Aimee Graham

    Mrs. Everly

16. 

    Jeffrey Hutchinson

    Richard Weingarten

17. 

    Dana Gladstone

    Trepanation Expert

18. 

    Deborah Offner

    ICU Nurse

19. 

    Michael Whaley

    Mr. Busey

20. J.P. Hubbell

    Lars Audia

21. 

    Garret Davis

    Mr. BB

22. 

    William Marquez

    Mr. Ramos

23. 

    Janni Brenn

    Kass

24. 

    Julie Bowen

    Roxanne Please

25. David Brisbin

    Alexander Babcock

26. 

    Brian Lester

    Brian Dumar

27. 

    Lyn Alicia Henderson

    Pamela Olbes

28. 

    Demetrius Navarro

    Morales

29. 

    Sam Anderson

    Jack Kayson

30. 

    Khandi Alexander

    Jackie Robbins

31. 

    Abraham Benrubi

    Jerry Markovic

32. 

    Lily Mariye

    Lily Jarvik

33. 

    Montae Russell

    Dwight Zadro

Equipa Técnica 5