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 16

1. 

   Nancy McKeon

   Gail Sweeney

2. 

   Kirk B.R. Woller

   Jim Sweeney

3. 

   Michael Dorn

   Nathan Riggs

4. 

   John Bobek

   Brian Epstein

5. 

   Joe Reegan

   Tom Sweeney

6. 

   Ty Miller

   Tech Agent

7. 

   Paul James

   Allen Hayes

8. Simone Moore

   Taryn Riggs

9. 

   Lindsey Broad

   Rachel

10. David Adkins

    Dean Packard

11. 

    Jaden Sorensen

    Seven-Year-Old Tom

12. 

    Leah Rachel

    Female Student

13. Rasika-Sharon Marletto

    Youthful Anchor

14. Jefferson O.S. Brassfield

    ND Agent

15. 

    John L. Curtis

    ERT

16. 

    Jane Cho

    Lisa Nakamura

Crew 1