Mary Lynn Rajskub is Chloe O’Brian, another character who portrays as one of the most trusted friend of Jack Bauer, and most times during lots of maverick favors for Bauer in series 24.

Chloe had an extraordinary talent of engineering computers, and most times you can see her at the terminals of the CPU’s. She is not seen on field, but has extraordinarily shown her mastery of using destructive weapons during day four and day five. Despite the need for her to have real training in social graces; she is a real friend for most CTU agents, and had shown high fidelity of friendship. She did grew fond of Agent Chase Edmunds, especially when she decided to care for his daughter from his previous girl friend, and even up to the point of almost taking care of the girl as her daughter, to keep it a secret in behalf of Chase from his new girl friend, Kim Bauer, the daughter might detract her from going on the relationship if she knew Chase had a daughter. Agent Edmunds wants to keep his daughter from Kim, because he feared that Kim might leave him upon knowing the existence of a fathered child.