Jennifer Garner Sydney Bristow Actor Victor Garber Jack Bristow Actor Ron Rifkin Arvin Sloane Actor Michael Vartan Michael Vaughn Actor Lena Olin Irina Derevko, Laura Bristow Actor Bradley Cooper Will Tiffin Actor Merrin Dungey Francie Calfo Actor Carl Lumbly Marcus Dixon Actor Kevin Weisman Marshall Flinkman Actor David Anders Julian Sark Actor Terry O'Quinn F.B.I. Assistant Director Kendall Guest Star Faye Dunaway Ariana Kane Guest Star Greg Grunberg Eric Weiss Guest Star Amy Irving Emily Sloane Guest Star Ira Heiden C.I.A. Techie Rick McCarthy Guest Star Doug Kruse Patton Birch Guest Star Don Took Agent Grey Guest Star Phillipe Simon Claude Rousseau Guest Star Roger Ranny Jonathan Potash Guest Star Courtney Gains Holden Gemler Guest Star Kevin Sutherland Agent Blake Guest Star Laurent Alexandre Airport Security Guard Guest Star J.J. Abrams Executive Producer John Eisendrath Executive Producer Ken Olin Executive Producer Jeff Pinkner Writer Lawrence Trilling Director