Kiefer Sutherland Jack Bauer Actor Mary Lynn Rajskub Chloe O'Brian Actor Janeane Garofalo Janis Gold Actor Cherry Jones Allison Taylor Actor Carlos Bernard Tony Almeida Actor Annie Wersching Renee Walker Actor Jeffrey Nordling Larry Moss Actor Jon Voight Jonas Hodges Guest Star Elisha Cuthbert Kim Bauer Guest Star Sprague Grayden Olivia Taylor Guest Star Glenn Morshower Aaron Pierce Guest Star Will Patton Alan Wilson Guest Star Gabriel Casseus Robert Galvez Guest Star Carlo Rota Morris O'Brian Guest Star Omid Abtahi Jibraan Al-Zarian Guest Star Christina Chang Dr. Sunny Macer Guest Star Frank John Hughes Tim Woods Guest Star Leland Orser Martin Collier Guest Star Amy Price-Francis Cara Bowden Guest Star Diego Klattenhoff Sergeant Cadden Guest Star Joel Surnow Executive Producer Robert Cochran Executive Producer Brian Grazer Executive Producer Howard Gordon Executive Producer Michael Klick Director Alex Gansa Writer Chip Johannessen Writer