Elenco Principal da Temporada 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

Convidados Especiais 17

1. 

   Kristina Anapau

   Emma Collins

2. 

   Ben Savage

   Kirby Morris

3. 

   Brad Beyer

   Kevin Weaver

4. 

   William R. Moses

   Dale Harmon

5. 

   John Sloan

   Ben Coleman

6. Jessica Wright

   Leah Russell

7. 

   David Carpenter

   Harvey

8. 

   John Forest

   Cooper Wilson

9. 

   Jeff Tschida

   Walter

10. 

    Jamieson Price

    Union Soldier

11. Drew Butler

    Cameraman

12. Jamison Reeves

    Soundman

13. Seth Ginsberg

    Young Kirby

14. 

    Eva Fisher

    Woman

15. 

    Kelcie Stranahan

    Young Leah

16. 

    Adriana DeMeo

    Lucy

17. Robert A. Johnson

    Confederate Soldier

Equipa Técnica 1