Kiefer Sutherland as Jack Bauer
Mary Lynn Rajskub as Chloe O'Brian
Yvonne Strahovski as Kate Morgan
Carlos Bernard as Tony Almeida
Laura Harris as Marie Warner
Regina King as Sandra Palmer
Eric Balfour as Milo Pressman
Alberta Watson as Erin Driscoll
Tanya Wright as Patty Brooks
Glenn Morshower as Aaron Pierce
Jude Ciccolella as Mike Novick
Freddie Prinze Jr. as Cole Ortiz
John Boyd as Arlo Glass
Chris Diamantopoulos as Rob Weiss
Anil Kapoor as Omar Hassan
Mykelti Williamson as Brian Hastings
Katee Sackhoff as Dana Walsh
Marisol Nichols as Nadia Yassir
Shohreh Aghdashloo as Dina Araz
William Devane as James Heller
Benjamin Bratt as Steve Navarro
Tate Donovan as Mark Boudreau
Andrea Thompson as Dr. Nicole Duncan
Penny Johnson Jerald as Sherry Palmer
Michael Massee as Ira Gaines
Alan Dale as Vice President Jim Prescott
Zachary Quinto as Adam Kaufman
Connie Britton as Diane Huxley
Paul Wesley as Stephen
Jean Smart as Martha Logan
Sarah Wynter as Kate Warner
James Badge Dale as Chase Edmunds
Xander Berkeley as George Mason
Leslie Hope as Teri Bauer
Dennis Haysbert as President David Palmer
Kim Raver as Audrey Raines
Lana Parrilla as Sarah Gavin
Elisha Cuthbert as Kim Bauer
Reiko Aylesworth as Michelle Dessler
Roger R. Cross as Curtis Manning
Sarah Clarke as Nina Myers
Louis Lombardi as Edgar Stiles
Peter MacNicol as Tom Lennox
Gregory Itzin as President Charles Logan
James Morrison as Bill Buchanan
D.B. Woodside as Wayne Palmer
Cherry Jones as President Allison Taylor
Annie Wersching as Renee Walker
Colm Feore as Henry Taylor
Bob Gunton as Ethan Kanin
Jeffrey Nordling as Larry Moss
Rhys Coiro as Sean Hillinger
Janeane Garofalo as Janis Gold
Carlo Rota as Morris O'Brian
Jayne Atkinson as Karen Hayes