Stała obsada sezonu 4

1. 

   David James Elliott

   Harmon Rabb

2. 

   Catherine Bell

   Sarah MacKenzie

3. 

   Patrick Labyorteaux

   Bud Roberts

4. 

   John M. Jackson

   AJ Chegwidden

Goście specjalni 14

1. 

   Troian Bellisario

   Erin Terry

2. 

   Will Rothhaar

   Josh Pendry

3. 

   Kirsten Holmquist

   Lt. Cmdr. Ruth Terry

4. 

   Victor Rivers

   Miguel Cortes

5. 

   Dan Gerrity

   Commander Charles Ziegler

6. 

   Jeffrey Hutchinson

   Lt. Kyle Williams

7. Kipp Shiotani

   Doc Wainer

8. 

   Rawley Valverde

   Juan Santos

9. 

   Michelle Bonilla

   Rosalita

10. 

    Daphne Ashbrook

    Annie Pendry

11. 

    Gonzalo Menendez

    Marine

12. Rick Ike Jones

    Marine

13. Darrel Casalino

    Instructor

14. 

    Paul Collins

    Alexander Nelson

Ekipa 6