بازیگران ثابت فصل 4

1. 

   David James Elliott

   Harmon Rabb

2. 

   Catherine Bell

   Sarah MacKenzie

3. 

   Patrick Labyorteaux

   Bud Roberts

4. 

   John M. Jackson

   AJ Chegwidden

‫ستارگان مهمان 9

1. 

   Zoe McLellan

   Jennifer Coates

2. 

   Scott Lawrence

   Sturgis Turner

3. 

   Jennifer Savidge

   Cmdr. Amy Helfman

4. 

   Nanci Chambers

   Loren Singer

5. 

   Karri Turner

   Harriet Sims

6. 

   Chuck Carrington

   Petty Officer First Class Jason Tiner

7. 

   Missy Yager

   Lt. Cmdr. Cheryl Ashley

8. 

   Laura Johnson

   Mrs. Kubin

9. 

   Jennifer Tung

   Toxicologist

عوامل تولید 2