Season Regulars 4

1. 

   Vincent D'Onofrio

   Robert Goren

2. 

   Kathryn Erbe

   Alexandra Eames

3. 

   Courtney B. Vance

   Ron Carver

4. 

   Jamey Sheridan

   James Deakins

Guest Stars 25

1. 

   Peggy Gormley

   Judge Colby

2. 

   Arian Moayed

   Samil Al-Bana

3. 

   Carrie Preston

   Doreen Whitlock

4. Pamela Burrell

   Leanne Colson

5. 

   Kenneth Kimmins

   Bob Reedy

6. 

   Sam Robards

   Paul Whitlock

7. 

   Ross Gibby

   Dan Milner

8. Dana Vance

   Dr. Amanda Ritter

9. Sebastian Vignone

   Adam Whitlock

10. 

    Albert Jones

    Detective Terrell

11. James Ludwig

    Tim Keller

12. 

    C.S. Lee

    Detective Choi

13. 

    Nick Basta

    Officer Kenyon

14. 

    Nina Hellman

    Nurse Rodriguez

15. Kyle Maruca

    Peter Whitlock

16. Luke Maruca

    Peter Whitlock

17. Matthieu Chatelain

    Theo Whitlock

18. Oliver Chatelain

    Theo Whitlock

19. Atosa Navi

    Al-Bana's Wife

20. 

    Guy Messenger

    CSU Technician

21. 

    Maximiliano Hernández

    Nunez

22. 

    Khan Baykal

    Travis

23. Mueen Jahan Ahmad

    Aziz

24. Ty Copeman

    Lawyer

25. 

    Jack Met

    Billy Whitlock

Crew 4