Jennifer Garner Sydney Bristow Actor Victor Garber Jack Bristow Actor Ron Rifkin Arvin Sloane Actor Michael Vartan Michael Vaughn Actor Carl Lumbly Marcus Dixon Actor Kevin Weisman Marshall Flinkman Actor David Anders Julian Sark Actor Greg Grunberg Eric Weiss Actor Isabella Rossellini Katya Derevko Guest Star Griffin Dunne Leonid Lisenker Guest Star Byron Chung Colonel Yu Guest Star Leo Lee Mr. Kwan Guest Star Arnold Vosloo Mr. Zisman Guest Star C.W. Pyun Ki-Jong Guest Star Francois Chau Mr. Cho Guest Star Elea Oberon Sloane's Secretary Guest Star Randall Park Korean Soldier Guest Star John D. Kim Soldier 1 Guest Star J.J. Abrams Executive Producer John Eisendrath Executive Producer Ken Olin Executive Producer, Director Josh Appelbaum Writer Andre Nemec Writer