Alias (television) One-hour drama on ABC television, premiering September 30, 2001, and ending May 22, 2006, exploring the double life of Sydney Bristow, a 26-year-old graduate student secretly working as a CIA agent. Stars Jennifer Garner (Sydney Bristow), Victor Garber (Jack Bristow), Ron Rifkin (Arvin Sloane), Michael Vartan (Agent Vaughn), Carl Lumbly (Agent Dixon), Kevin Weisman (Marshall), Greg Grunberg (Eric Weiss), Mia Maestro (Nadia Santos). Produced by Touchstone Television.