Jennifer Garner
as Sydney Bristow
Ron Rifkin
as Arvin Sloane
Victor Garber
as Jack Bristow
Carl Lumbly
as Marcus Dixon
Kevin Weisman
as Marshall Flinkman
Michael Vartan
as Michael Vaughn
Greg Grunberg
as Eric Weiss
David Anders
as Julian Sark
Bradley Cooper
as William "Will" Tippin
Merrin Dungey
as Francine "Francie" Calfo
Mia Maestro
as Nadia Santos
Lena Olin
as Irina Derevko
Melissa George
as Lauren Reed
Rachel Nichols
as Rachel Gibson
Balthazar Getty
as Thomas Grace
Amy Acker
as Kelly Peyton
Elodie Bouchez
as Renee Rienne