Because you like Leeloo in The Fifth Element
Aang is already a master airbender and once he learns to manipulate water, earth, and fire, he'll be truly unbeatable. See them in Avatar: The Last Airbender.
Emmet Brickowski is so upbeat it's not even human. Everything is AWESOME! See them in The Lego Movie.
Donna is boisterous and spunky traveller of the TARDIS, exploring worlds beyond the simple mundane enterprises of Earth. See them in Doctor Who.
Melinda May is a woman of few words and many talents. Most of them martial. See them in Marvel Cinematic Universe.
For Morgana, sometimes wanting to do the right thing can led you down the wrong path. See them in Merlin.
Cosima Niehaus loves exploring the unknown. Even her own DNA is a puzzle, waiting to be unlocked. See them in Orphan Black.
A believer in the philosophy of Nietzsche, Dwayne Hoover has taken a vow of silence until he becomes a test pilot for the Air Force. See them in Little Miss Sunshine.
A wildly brilliant detective, Sherlock Holmes can figure out everything except how to interact with other human beings. See them in Sherlock.
Puss In Boots is a suave, honorable ladies man/cat who's not above playing cute to get you to let down your guard. See them in Shrek 2.
Princess-turned-General Leia Organa is a sharp, fearless royal who gets herself into trouble and fights her way out of it. See them in Star Wars Series.