Because you like James T. Kirk in Star Trek
Miss Havisham is the creepiest old rich lady in town. See them in Great Expectations.
Courteous, dangerous, and powerful, Kaname Kuran controls an entire court of vampires. Very, very pretty vampires. See them in Vampire Knight.
Seth is short-tempered, crude, and terrible at school, but hopefully there's nothing an epic party can't fix. See them in Superbad.
Milo Thatch is an enthusiastic researcher without cynicism. See them in Atlantis: The Lost Empire.
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.
Charlie Bucket may be down-on-his-luck, but his spirits are always sky high. See them in Charlie and the Chocolate Factory.
A legendary warrior with a complicated relationship to the truth, Jaime Lannister is revered and reviled in equal measure See them in Game of Thrones.
Cisco Ramon is a proud, enthusiastic member of a superhero support team. See them in DC Extended Universe.
Community-driven but practical, Calvin Palmer is a natural leader even if he doesn't always see it. See them in Barbershop.
James Wilson is a compassionate doctor who willingly plays the sidekick. See them in House M.D..
