Πρωταγωνιστές του κύκλου 9

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

7. 

   פיטר ג'ייקובסון

   Chris Taub

8. 

   Olivia Wilde

   Thirteen

9. 

   Kal Penn

   Lawrence Kutner

Γκεστ σταρ 11

1. 

   Mary Jo Deschanel

   Julia

2. 

   Ed Brigadier

   Richard

3. 

   Colleen Camp

   Charlotte

4. 

   Meat Loaf

   Eddie

5. 

   Bob Rusch

   Phil

6. 

   Hart Boykin

   Arthur

7. 

   Debbie Campbell

   Katherine

8. Taylor Hardick

   Rosabel

9. 

   Roger Narayan

   Pundit

10. 

    Liz Benoit

    Nurse Anne

11. Bobbin Bergstrom

    Nurse

Συντελεστές 5