Joel Surnow Creator, Executive Producer Robert Cochran Creator, Executive Producer Kiefer Sutherland Jack Bauer Actor James Morrison Bill Buchanan Actor Mary Lynn Rajskub Chloe O'Brian Actor DB Woodside Wayne Palmer Actor Jayne Atkinson Karen Hayes Actor Carlo Rota Morris O'Brian Actor Peter MacNicol Thomas Lennox Actor Regina King Sandra Palmer Actor Eric Balfour Milo Pressman Actor Marisol Nichols Nadia Yassir Actor Powers Boothe Vice President Noah Daniels Guest Star Adoni Maropis Abu Fayed Guest Star Ricky Schroder Mike Doyle Guest Star Rade Serbedzija Dmitri Gredenko Guest Star Bob Gunton Ethan Kanin Guest Star Kari Matchett Lisa Miller Guest Star Rena Sofer Marilyn Bauer Guest Star JR Bourne Connell Johnson Guest Star Jim Holmes Dr. Arthur Welton Guest Star Ryan Cutrona Admiral John Smith Guest Star Scott Michael Campbell Brady Hauser Guest Star Alexis Cassar Agent Ryan Guest Star Dylan Kenin Victor Guest Star Eric Cazenave CTU SWAT Medic Guest Star Francisco Viana EMT Guest Star K.T. Thangavelu Nurse Guest Star Brian Grazer Executive Producer Howard Gordon Executive Producer Jon Cassar Director Evan Katz Writer Manny Coto Writer Sean Callery Music Rodney Charters Cinematographer