Because you like Wendy Darling in Peter Pan
Loyal to his family and associates and distrustful of anyone else, Tony Soprano is a good guy to have on your side. See them in The Sopranos.
A powerful mob boss, Vito Corleone is always making offers people can't refuse. See them in The Godfather.
Eliot Waugh is the unspoken leader of his group of friends at a school for magic. See them in The Magicians.
Clementine Kruczynski thinks that too many guys think she's a concept, or she completes them, or she's gonna make them alive. See them in Eternal Sunshine of the Spotless Mind.
Clank is the quintessential rational, intelligent robot sidekick. See them in Ratchet & Clank.
Both intelligent and empathetic, Remus Lupin is worn down by the weight of a secret. See them in Harry Potter Series.
The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.
Regina George is teen royalty. And anything the queen bee says, goes. See them in Mean Girls.
Foul mouthed and disturbingly comfortable with violence, Hit-Girl is a precocious assassin who doesn't need anyone's protection. See them in Kick-Ass.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
Kara "Starbuck" Thrace will beat you in cards, drink you under the table, then fly circles around you in her fighter plane. See them in Battlestar Galactica.
Albus Dumbledore oversees the most unsafe school in recorded history, with Dementors and giant arachnids run amok. See them in Harry Potter Series.