Season Regulars 6

1. 

   Hugh Laurie

   Gregory House

2. 

   Lisa Edelstein

   Lisa Cuddy

3. 

   Robert Sean Leonard

   James Wilson

4. 

   Omar Epps

   Eric Foreman

5. 

   Jennifer Morrison

   Allison Cameron

6. 

   Jesse Spencer

   Robert Chase

Guest Stars 15

1. 

   Peter Jacobson

   Chris Taub

2. 

   Olivia Wilde

   Thirteen

3. 

   Kal Penn

   Lawrence Kutner

4. 

   Matt DeCaro

   McKenna

5. 

   Jeremy Renner

   Jimmy Quidd

6. 

   Alex Weed

   Ian

7. 

   Anne Dudek

   Amber Volakis

8. Justin Brannock

   Rex

9. 

   Nick McCallum

   Fred

10. 

    Eli Bildner

    Chris

11. 

    Boris Kievsky

    Club Owner

12. Tanika Brown McKelvy

    Parent

13. Spencir Bridges

    Kid

14. Dina Defterios

    Luisa Maria

15. Bobbin Bergstrom

    Nurse

Crew 5