Joel Surnow Creator, Executive Producer Robert Cochran Creator, Executive Producer Kiefer Sutherland Jack Bauer Actor Elisha Cuthbert Kim Bauer Actor Carlos Bernard Tony Almeida Actor Reiko Aylesworth Michelle Dessler Actor James Badge Dale Chase Edmunds Actor Dennis Haysbert David Palmer Actor Christina Chang Dr. Sunny Macer Guest Star Wendy Crewson Dr. Anne Packard Guest Star Joaquim de Almeida Ramon Salazar Guest Star Vanessa Ferlito Claudia Hernandez Guest Star Vincent Laresca Hector Salazar Guest Star Riley Smith Karl Singer Guest Star Andrea Thompson Dr. Nicole Duncan Guest Star DB Woodside Wayne Palmer Guest Star Jesse Borrego Gael Ortega Guest Star Agnes Bruckner Linda Guest Star Lucinda Jenney Helen Singer Guest Star Ted Marcoux Sam Singer Guest Star Carlos Gomez Luis Annicon Actor Zachary Quinto Adam Kaufman Guest Star Mary Lynn Rajskub Chloe O'Brian Guest Star David Labiosa David Gomez Guest Star Ty Upshaw Jeff Benson Guest Star Keith MacKechnie Virologist Guest Star Michael Canaan Mall Security Guard Guest Star Brian F. Durkin CTU Agent Brian Pierson Guest Star Brian Grazer Executive Producer Howard Gordon Executive Producer, Writer Ian Toynton Director Sean Callery Music Rodney Charters Cinematographer Gregory J. Barnett Stunt Coordinator