Elenco Principal da Temporada 4

1. 

   Vincent D'Onofrio

   Robert Goren

2. 

   Kathryn Erbe

   Alexandra Eames

3. 

   Courtney B. Vance

   Ron Carver

4. 

   Jamey Sheridan

   James Deakins

Convidados Especiais 21

1. 

   Missy Doty

   Anne Merie

2. 

   Hardy Rawls

   Mr. Frank

3. 

   Amy Redford

   Maureen Garros

4. Jordan Clarke

   Bernie Moreno

5. 

   Adam Goldberg

   Victor Garros

6. 

   Kathleen Robertson

   Darla Pearson

7. 

   Leslie Hendrix

   Elizabeth Rodgers

8. 

   Reed Birney

   Fred Martz

9. 

   A.D. Miles

   Zach

10. 

    Julia K. Murney

    Hillary Martz

11. James Kennedy

    Thomas Worth

12. Ken Krugman

    Jay Pearson

13. Hudson Cooper

    Detective Rosemont

14. Jack Vignone

    Jeremy Martz

15. 

    Garry Pastore

    Detective Brown

16. 

    R. Ward Duffy

    Detective Langford

17. 

    Kevin Henderson

    Otto

18. 

    Gerardo Rodriguez

    Ruiz

19. 

    Daniel Stewart Sherman

    Bob

20. Bryant Richards

    CSU Technician

21. 

    Frederick Keeve

    News Anchor

Equipa Técnica 2