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 16

1. 

   Sean Astin

   Paul Buchanan

2. 

   Holland Taylor

   Peggy Davenport

3. 

   Ashley Johnson

   Susie the Maid

4. 

   Vanessa Branch

   Mrs. Murphy

5. John Berg

   Alfred

6. 

   Warren Burton

   Roger

7. 

   David St. James

   Edward Stilson

8. 

   Michael Cavanaugh

   Bobby Davenport

9. 

   Karron Graves

   Monica Buchanan

10. 

    Judi Barton

    Sylvia

11. Kiyoko Yamaguchi

    Merva the Maid

12. 

    Leigh Rose

    Mabel

13. Sarah J. Cornelius

    Clara Buchanan

14. 

    Sean Donnellan

    Burly Mechanic

15. 

    Gayle Hooker

    Camilla Buchanan (uncredited)

16. 

    Stanley Kamel

    Dr. Charles Kroger

Ekipa 2