Sydney A. Bristow(Jennifer Garner)
Arvin Sloane(Ron Rifkin)
Michael C. Vaughn(Michael Vartan)
William 'Will' D. Tippin(Bradley Cooper)
Jonathan 'Jack' Donahue Bristow(Victor Garber)
Francine 'Francie' Calfo / Allison Georgia 'A.G.' Doren(Merrin Dungey)
Lauren Reed(Melissa George)
Marcus R. Dixon(Carl Lumbly)
Eric Weiss(Greg Grunberg)
Marshall J. Flinkman(Kevin Weisman)
Daniel Sark(David Anders)
Irina Derevko / Laura Bristow(Lena Olin)
Emily Sloane(Amy Irving)
Kendall(Terry O'Quinn)
Charles 'Charlie' Bernard(Evan Dexter Parke)
Steven Haladki(Joey Slotnick)
Dr. Judy Barnett(Patricia Wettig)
