32. Jack Bauer and Chloe O'Brian, '24'
Where would the combustible counterterrorist Jack Bauer be without the cool-headed computer genius who's his closest ally and best friend? Dead, that's where. Actor Mary Lynn Rajskub's background as a comedian made her the perfect foil for Kiefer Sutherland's dead-serious man of action, ensuring that the emblematic War on Terror–era thriller always had a surprising and entertaining platonic partnership at its heart.