Because you like Bilbo Baggins in The Hobbit: An Unexpected Journey

How lucky are we that Arthur Curry, the King of Atlantis, hasn't taken over the surface world? Very! See them in DC Extended Universe.

A no-nonsense pro, Agent K has dedicated his whole life to his job. See them in Men in Black.

Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.

Kesuke Miyagi is a karate expert who thinks the best way a scrawny high schooler can learn how to defend himself is by washing every surface in sight. See them in The Karate Kid.

Bran Stark discovered a scandelous family secret. He swore to keep quiet but soon found himself on the receiving end of attempted murder. See them in Game of Thrones.

R2-D2 has been in the galaxy saving business for decades. Not bad for somebody whose vocabulary is limited to "beep-boop." See them in Star Wars Series.

Leonard Hofstadter is the normal one among his scientist friends, though in fairness that's a low bar. See them in The Big Bang Theory.

Kristoff may seem standoffish, but this ice harvester has a warm heart. See them in Frozen.

Though he may be blind, Chirrut Imwe sees the power of the force more than most. See them in Rogue One.

Joe West is overprotective and secretive when his children are involved. See them in DC Extended Universe.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.