Because you like Dustin Henderson in Stranger Things
Kyoya Ootori is possibly the only person who could reasonably go from VP of a school club to ruling the world. See them in Ouran High School Host Club.
For Celty Sturluson, it's rather upsetting to be the only headless girl in a city filled with full-bodied humans. See them in Durarara!!.
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.
The Terminator is an emotionless killing machine who won't stop until he's changed the future. See them in The Terminator.
Nina Sayer finally landed the role of prima ballerina, but as tension ramps up in rehearsal, she starts losing her mind. See them in Black Swan.
Ponyboy Curtis is a "Greaser" on the surface, but he's a sensitive poet underneath. See them in The Outsiders.
Beware! Anton Chigurh carries a coin with him, which he forces his victims to flip to decide whether they will live or die. See them in No Country for Old Men.
Whatever Sakura Haruno lacks in power, she makes up for in intelligence and bravery. See them in Naruto.
Equal parts klutzy and clever, Ella is not afraid to take her fate into her own hands. See them in Ella Enchanted.
Emily Gilmore is the DAR chair, proud grandmother, and full of opinions. See them in Gilmore Girls.
Clementine is a beacon of innocence in a dangerous, deadly world. See them in The Walking Dead (Video Game).