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 James Lesure Craig Blair Guest Star Ira Heiden C.I.A. Techie Rick McCarthy Guest Star Joseph Ruskin Alain Christophe Guest Star Wolf Muser Ramon Veloso Guest Star Andy Gatjen Aide Guest Star Marshall Manesh Rajive Guest Star Derek de Lint Gerard Cuvee Guest Star Iqbal Theba General Arshad Guest Star P.D. Mani SFX Guard Guest Star J.J. Abrams Executive Producer John Eisendrath Executive Producer Ken Olin Executive Producer, Director Crystal Nix Hines Writer