Because you like Donna Carmichael in Mamma Mia!
Winry Rockbell is an energetic tomboy mechanic with an empathetic streak. See them in Fullmetal Alchemist.
If only real life were as easy for Abed Nadir to understand as he knows pop culture. See them in Community.
His elfin self-confidence can border on pretension, but Legolas Greenleaf is a fearsome fighter and a loyal friend. See them in The Lord of the Rings.
Clary Fray's philosophy: dive into the supernatural underworld first and ask questions later. See them in City of Bones.
Angel is fighting as best as he can, but the disease might be too powerful for even his strong, positive energy. See them in Rent.
They say Babydoll has lost her mind. But why does it seem like she's the only sane one in her institution? See them in Sucker Punch.
Olivia Benson brings order to a world full of chaos. And she never forgets who she's fighting for. See them in Law & Order: Special Victims Unit.
Tobias "Four" Eaton is only afraid of four things, but you should probably be afraid of him. See them in Divergent.
This wizard is never late, nor is he early. Gandalf arrives precisely when he means to. See them in The Lord of the Rings.
Insightful about everyone else's neuroses, Rose Lalonde is not as aware of her own. See them in Homestuck.
Jack Frost would rather crack a joke or throw a snowball than take anything seriously. See them in Rise of the Guardians.