Because you like Michelle Flaherty in American Pie

Blaine Anderson is a put-together prep school boy with the voice of an angel. See them in Glee.

Topanga Lawrence has been a put-together intellectual since basically the moment she could talk. See them in Boy Meets World.

When a half-breed breaks the rules, John Constantine deports them straight back to hell. He's trying to buy his way into heaven. See them in Constantine.

Carol Peletier's credo: your strength comes from who you are, not who you used to be. See them in The Walking Dead.

Brian Griffin is the most scholarly member of the family—when he's not drunk on martinis. See them in Family Guy.

Marshall Eriksen is a lawyer in love who is enjoying life. See them in How I Met Your Mother.

After surviving a CIA mission that was supposed to kill him, ex-military man John Reese bets it all on a chance to redeem himself. See them in Person of Interest.

Suzy Bishop is only 12, but her withering stare and withdrawn personality are enough to make anyone wilt. See them in Moonrise Kingdom.

Trevor Phillips is an unpredictable maniac who tortures people for no reason. See them in Grand Theft Series.

Nomi Marks is a brilliant hacker with an open-minded, accepting spirit. See them in Sense8.

In charge of stocking the office's supply of cigarettes and liquor, Joan Holloway could run the whole company if they would let her. See them in Mad Men.

A compassionate medical student, Martha Jones has found a Doctor she can really look up to. See them in Doctor Who.