Season Regulars 6

1. 

   Anthony LaPaglia

   Jack Malone

2. 

   Poppy Montgomery

   Samantha Spade

3. 

   Marianne Jean-Baptiste

   Vivian Johnson

4. 

   Enrique Murciano

   Danny Taylor

5. 

   Roselyn Sánchez

   Elena Delgado

6. 

   Eric Close

   Martin Fitzgerald

Guest Stars 20

1. 

   Molly Cheek

   Teri Lawson

2. 

   Patricia Tallman

   Latte Woman

3. 

   Heidi Swedberg

   Laura Worth

4. 

   Sean O'Bryan

   Jeremy Burton

5. 

   Michael Laskin

   Chaim Rubin

6. 

   Penny Balfour

   Sue Young

7. 

   Mireille Enos

   Jessica Lawson

8. 

   Billy Gallo

   Frank Young

9. Eric Strickland

   Nathan Kelly

10. Candace Edwards

    Paulette Harrison

11. 

    Ricardo Molina

    Alejandro Mendoza

12. 

    Steve Seagren

    Tom Knowles

13. 

    Paul Bartholomew

    Derek Hudson

14. Matthew Stephen Young

    FBI Tech

15. Steve Royall

    Trey

16. 

    Jonathan Craig Williams

    Concerned Man

17. Bonnie Afsary

    Operator #1

18. Ray Chang

    Operator #2

19. Lauren Patrice Nadler

    Operator #3

20. Gregg Goulet

    Operator #4

Crew 1