Because you like Liz Lemon in 30 Rock
Rupert Giles is a librarian on the outside, fearless evil-fighter on the inside. See them in Buffy the Vampire Slayer.
Tina Cohen-Chang is a shy loner who becomes a fierce performer on stage. See them in Glee.
Catherine Linton was once spontaneous and rowdy but ever since marrying the wealthy Edgar, she has morphed into a boiling pot of emotional outbursts. See them in Wuthering Heights.
Oscar Martinez is a national accountant in an office of weirdos. See them in The Office.
Combining an innocent face with an insatiable bloodlust, Eli recruits friends to join the vampire way of life. See them in Let the Right One In.
A former child mayor fallen from grace, Ben Wyatt is still trying to pick up the pieces years later. See them in Parks and Recreation.
Angela Martin is uptight and puritanical, outside of the affair she's having with a co-worker. See them in The Office.
Carrie Bradshaw is a sex columnist addicted to expensive shoes, Cosmopolitan martinis, and unavailable men. See them in Sex and the City.
John Locke is an eerily calm, confident believer in the magic of the island that gave him his legs back. See them in Lost.
Columbus can't trust anyone. The first girl he let into his life tried to eat him. See them in Zombieland .
A few millennia in the mortal realm have caused DEATH to be quite enamored of life. See them in Discworld.