Because you like Rhett Butler in Gone with the Wind
Frodo might have carried the ring, but Samwise Gamgee carried the ring bearer. See them in The Lord of the Rings.
Susan Pevensie is sensible, practical, and fiercely protective of those she loves. See them in The Chronicles of Narnia.
Ponyboy Curtis is a "Greaser" on the surface, but he's a sensitive poet underneath. See them in The Outsiders.
After being resurrected and discovering his new morphing abilities, Alex Mercer uses them to combat the virus now ravaging New York. See them in Prototype Series.
Resourceful and pragmatic, Selina Kyle always keeps in mind her number one priority: herself. See them in Gotham.
All who live know his name, and all who oppose him shall know Death. See them in Darksiders Series.
Michael Kelso gets by on his good looks and his openhearted nature. See them in That '70s Show.
The adventurous daughter of Port Royal's governor, Elizabeth Swann would rather conspire with pirates than sit pretty in her corset. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.
Leonardo is spiritual, and devoted to more than just pizza. See them in Teenage Mutant Ninja Turtles.
John Bender's interests include marijuana, fighting, and breaking the rules. See them in The Breakfast Club.