Because you like Kitty Forman 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.
Brilliant, violent, and only a little insane, the Joker doesn't listen to anyone except the voices in his head. See them in DC Extended Universe.
Percy Jackson is an ordinary student thrust into the world of myth come alive. See them in Percy Jackson & The Olympians: The Lightning Thief.
Jacob Black is the boy next door who's also the wolf next door. See them in Twilight.
Jim Halpert is a master at the art of making it through the work day, including participating in an office Olympics. See them in The Office.
Jin Kazama is a fearsome warrior torn between the darkness and the light. See them in Tekken .
An undercover DEA agent, Max Payne is too focused on avenging the past to plan for the future. See them in Max Payne.
She's mostly doom and gloom, but you'd get nowhere without Sadness. See them in Inside Out.
The brilliant and well-adjusted Ender Wiggin is being groomed for the next generation of military leaders to fight alien invaders. See them in Ender's Game.
A dreamy space cadet, Luna Lovegood has never met a conspiracy theory she didn't believe in. See them in Harry Potter Series.
Basically a giant pillow come to life, Baymax is a medical robot created for the sole purpose of helping people. See them in Big Hero 6.