Chloe O'BrianPlayed by: Mary Lynn Rajskub
Chloe O'Brian is a CTU veteran. She's a programmer extraordinnaire and as close a friend of Jack Bauer's as one can get.
She's married and has a son.
Chloe is a bit socially awkward, but that also makes her hilarious to viewers. She can always be counted on to remain loyal to Jack and, of course, to America.