Kiefer Sutherland Jack Bauer Actor Elisha Cuthbert Kim Bauer Actor Dennis Haysbert David Palmer Actor Carlos Bernard Tony Almeida Actor Reiko Aylesworth Michelle Dessler Actor James Badge Dale Chase Edmunds Actor Andrea Thompson Dr. Nicole Duncan Guest Star DB Woodside Wayne Palmer Guest Star Vincent Laresca Hector Salazar Guest Star Mary Lynn Rajskub Chloe O'Brian Guest Star Joaquim de Almeida Ramon Salazar Guest Star Wendy Crewson Dr. Anne Packard Guest Star Riley Smith Kyle Singer Guest Star Lucinda Jenney Helen Singer Guest Star Ted Marcoux Sam Singer Guest Star Vanessa Ferlito Claudia Hernandez Guest Star Jesse Borrego Gael Ortega Guest Star Paul Schulze Ryan Chappelle Guest Star Geoff Pierson Senator John Keeler Guest Star Mark Thompson Moderator Guest Star Joel Surnow Executive Producer Robert Cochran Executive Producer Brian Grazer Executive Producer Howard Gordon Executive Producer Jon Cassar Director Duppy Demetrius Writer