Because you like Lip Gallagher in Shameless
It’s usually the good-looking, charismatic, play-by-their-own-rules types that get everyone into trouble, and Tyler Durden is Exhibit A. See them in Fight Club.
Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.
Don't tell anyone Kate Austen was under arrest when the plane crashed. See them in Lost.
Jasmine dreams of something more than palace life, and she's not afraid to go get it. See them in Aladdin.
On the outside, Gwen seems meek and calm. But she has an inner core of steel. See them in Merlin.
Rose Tyler may have not done too well in school, but she's certainly holding her own in space. See them in Doctor Who.
Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.
Michaelangelo is an above-ground crime-fighter by night, and a pizza-eating, sewer-dwelling mutant ninja turtle by day. See them in Teenage Mutant Ninja Turtles.
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
GLaDOS will supply the food when you get together: a delicious cake. Of course, it could just be a trap so she can kill you. It’s hard to say. See them in Portal Series.
Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.