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 15

1. 

   Reed Diamond

   FBI Agent Stone

2. 

   Michael Fairman

   Stanley Greenblatt

3. 

   Tim Bagley

   Harold Krenshaw

4. 

   Vincent Curatola

   Jimmy Barlowe

5. 

   Eric Balfour

   Lenny Barlowe

6. 

   Kelly Carlson

   Lola

7. 

   Lance Barber

   Bill the Deliveryman

8. 

   Louis Lombardi

   Tommy G.

9. 

   Larry Brown

   Waiter

10. 

    Hope Banks

    Young Agent

11. Joshua Grenrock

    Alvin Greenblatt

12. 

    Kenyon Glover

    Doorman

13. 

    Randy Flagler

    Angry Patron

14. 

    Val Lauren

    Charlie

15. Brooklynne James

    Exotic Dancer Bambi

Ekipa 1