Kiefer Sutherland Jack Bauer Actor Elisha Cuthbert Kim Bauer Actor Dennis Haysbert David Palmer Actor Penny Johnson Sherry Palmer Actor Sarah Wynter Kate Warner Actor Carlos Bernard Tony Almeida Actor Xander Berkeley George Mason Actor Vicellous Reon Shannon Keith Palmer Guest Star Reiko Aylesworth Michelle Dessler Guest Star Skye McCole Bartusiak Megan Matheson Guest Star Billy Burke Gary Matheson Guest Star Timothy Carhart Eric Rayburn Guest Star Michelle Forbes Lynn Kresge Guest Star Sara Gilbert Paula Schaeffer Guest Star Laura Harris Marie Warner Guest Star Tracy Middendorf .Carla Matheson Guest Star Joel Surnow Executive Producer, Writer Robert Cochran Executive Producer Brian Grazer Executive Producer Howard Gordon Executive Producer Jon Cassar Director Michael Loceff Writer