Épisodes spéciaux
Visuels
| # | Image | Titre | Diffusé |
|---|---|---|---|
| 1 |  | Prequel to Season 4 | 7 déc. 2004 |
| 2 |  | Prequel to Season 5 | 6 déc. 2005 |
| 3 |  | 7 mois après | 5 déc. 2006 |
| 4 | Mobisode 1 9:01 PM | 21 mai 2007 | |
| 5 | Mobisode 2 9:44 PM | 28 mai 2007 | |
| 6 | Mobisode 3 10:32 PM | 4 juin 2007 | |
| 7 | Mobisode 4 10:35 PM | 11 juin 2007 | |
| 8 | Mobisode 5 10:38 PM | 18 juin 2007 | |
| 9 |  | 24h chrono : Rédemption | 23 nov. 2008 |
| 10 | Season Two Preview | 17 sept. 2002 | |
| 11 |  | Jack is Back | 7 avr. 2014 |
| 12 |  | Solitary | 14 sept. 2014 |
| 13 | Worlds Collide: When Reality Becomes Fiction | 30 sept. 2014 | |
| 14 | 24-7: The Untold Story | 19 mai 2009 | |
| 15 |  | 24 in 24 | 19 oct. 2009 |
| 16 |  | Chloe's Arrest | 8 nov. 2010 |
| 17 | Day 6 Debriefs | 21 mai 2007 | |
| 18 | Conspiracy | 30 janv. 2005 | |
| 19 | Season 1 Alternate Ending | 17 sept. 2002 | |
| 20 | Season 1 Alternate Ending with Commentary | 17 sept. 2002 | |
| 21 | Ricky Gervais Cameo | 1 oct. 2007 |