|First Air Date||:||2001-09-30|
|Last Air Date||:||2006-05-22|
|Number of Seasons||:||5|
|Number of Episodes||:||105|
|Genres||:||Action & Adventure, Drama|
Sydney Bristow, an agent who has been tricked to believe she is working for the U.S. government, is actually working for a criminal organization named the Alliance of Twelve. Upon learning this, Sydney becomes a double agent for the real CIA.
|Casts||:||Jennifer Garner, Ron Rifkin, Carl Lumbly, Kevin Weisman, Victor Garber, David Anders, Michael Vartan, Greg Grunberg, Merrin Dungey, Bradley Cooper, Rachel Nichols, Lena Olin, Melissa George, Johnny Trí Nguyễn, Amy Acker|