Stała obsada sezonu 4

1. 

   Tony Shalhoub

   Adrian Monk

2. 

   Ted Levine

   Leland Stottlemeyer

3. 

   Jason Gray-Stanford

   Randall Disher

4. 

   Traylor Howard

   Natalie Teeger

Goście specjalni 14

1. 

   Peter Weller

   Actor Playing Stottlemeyer

2. 

   Stanley Tucci

   David Ruskin

3. 

   Greg Grunberg

   Jack Leverett

4. 

   Susan Ward

   Michelle Cullman

5. 

   Andrea Bogart

   Actress Playing Disher

6. 

   Angel Oquendo

   Garage Attendant

7. 

   Carrie Reichenbach

   Actress Playing Natalie

8. David Mersault

   Director

9. Lara Black

   Young Female Cop

10. Margot Boecker

    Pretty Police Woman

11. 

    Michael Earl Reid

    Lexus Orlov

12. Rob Swanson

    Desk Sergeant

13. 

    Tom Ohmer

    Sergeant Lyman

14. 

    Stanley Kamel

    Dr. Charles Kroger

Ekipa 3