Because you like O-Ren Ishii in Kill Bill vol. 1

Noah Calhoun is lost without Allie, who seems to have moved on. See them in The Notebook.

Whether she's working as a mild-mannered assistant or an all-powerful superhero, Kara Danvers is defined above all by her huge heart. See them in Supergirl.

Smart and sensitive Sam Winchester tried to escape the family business, but ghosts have a way of haunting you. See them in Supernatural.

Park feels like an outsider everywhere he goes, but he doesn't know if he wants to try fitting in anymore. See them in Eleanor and Park .

John Watson is haunted by his past (who isn't) but he's starting to branch out with some help from a world class detective. See them in Sherlock.

A formerly timid caterpillar, Kurt Hummel is transforming into a glamorous, confident butterfly. See them in Glee.

Smart, sarcastic, and loyal, Stiles Stilinski doesn't just want to be the sidekick in someone else's life. See them in Teen Wolf.

After training a herd of raptor dinosaurs, everything else is a breeze for Owen Grady. See them in Jurassic World.

A natural leader, Clarke Griffin dispenses both justice and mercy, and she does it all while being selflessly humble. See them in The 100.

Barry Allen is a nerd, forensics expert‚ and superhero with supersonic speed who is determined to solve his mother's murder. See them in DC Extended Universe.

Everyone Barney Stinson knows is getting married or pregnant. But he's just getting more awesome. See them in How I Met Your Mother.