Season Regulars 7

1. 

   Hugh Laurie

   Gregory House

2. 

   Robert Sean Leonard

   James Wilson

3. 

   Omar Epps

   Eric Foreman

4. 

   Jesse Spencer

   Robert Chase

5. 

   Odette Annable

   Jessica Adams

6. 

   Peter Jacobson

   Chris Taub

7. 

   Charlyne Yi

   Chi Park

Guest Stars 15

1. 

   Olivia Wilde

   Thirteen

2. 

   Joshua Rush

   Ryan (uncredited)

3. 

   Skylar Astin

   Derrick

4. 

   Enzo Cilenti

   Matt Johnson

5. 

   Moira Squier

   Jen

6. 

   Natalie Dreyfuss

   Courtney

7. 

   Jacob Zachar

   Mikey

8. 

   Derek Mio

   Floyd

9. 

   Lindsay Dennis

   Cheerleader

10. David Danino

    Janitor

11. Brayden Brooks

    6 Year Old Christopher

12. 

    Michael Christian Alexander

    Man

13. 

    Pat McNeely

    Woman

14. 

    India King

    Cancer Patient (uncredited)

15. Bobbin Bergstrom

    Nurse

Crew 10