Artistes récurrents de la saison 4

1. 

   Kiefer Sutherland

   Jack Bauer

2. 

   Mary Lynn Rajskub

   Chloe O'Brian

3. 

   Kim Raver

   Audrey Raines

4. 

   James Morrison

   Bill Buchanan

Vedettes invitées 14

1. 

   Carlos Bernard

   Tony Almeida

2. 

   Jude Ciccolella

   Mike Novick

3. 

   Jayne Atkinson

   Karen Hayes

4. 

   Jean Smart

   Martha Logan

5. 

   Roger Cross

   Curtis Manning

6. 

   D.B. Woodside

   Wayne Palmer

7. 

   Gregory Itzin

   President Charles Logan

8. 

   Glenn Morshower

   Aaron Pierce

9. 

   Julian Sands

   Vladimir Bierko

10. 

    Stana Katic

    Collette Stenger

11. 

    Stephen Spinella

    Miles Papazian

12. 

    Ray Wise

    Vice-President Hal Gardner

13. 

    Henry Ian Cusick

    Theo Stoller

14. 

    Yorgo Constantine

    Mikhail

Équipe technique 3