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 27

1. 

   Celia Weston

   Joanne Dexler

2. 

   Bronson Pinchot

   Dr. Greg Ross

3. 

   Lucas Caleb Rooney

   Matty Cullen

4. Karen Shallo

   Carol Vanston

5. 

   John Braden

   Dr. Braden

6. 

   Leslie Hendrix

   Elizabeth Rodgers

7. 

   Katie MacNichol

   Colleen Dexler

8. Elizabeth Hobgood

   Lisa Vanston Ross

9. 

   Nathan Dean

   Dr. Belkin

10. 

    Stephen Barker Turner

    Adam Riggins

11. Cullen O. Johnson

    Mike Vanston

12. Carla Harting

    Dr. Amy Cantello

13. Sanjiv Jhaveri

    Dr. Patel

14. 

    Cornell Womack

    Detective Kahn

15. 

    Eva DeVirgilis

    Marcia Cullen

16. Richard Hoehler

    Zifkin

17. 

    Billy Merritt

    Jack

18. 

    Evan Neumann

    Rudy

19. 

    Cheryl Stern

    Karen

20. Lianne Kressin

    Migdalia

21. 

    Lucy McMichael

    Helen

22. 

    John Rue

    Quizmaster

23. 

    Cindy Cheung

    Layla

24. Dar Riser

    Mauricio

25. Joyce R. Korbin

    Moira

26. Patricia Dalen

    Cecilia

27. Daniel Gonzalez

    Louis

Crew 1