Because you like John Keating in Dead Poets Society
A meek schoolteacher, Mary Margaret Blanchard can't remember her past as a spirited, swashbuckling Snow White. See them in Once Upon a Time.
Will Turner is an earnest, lovelorn blacksmith's assistant with an adventurous spirit. See them in Pirates of the Caribbean: the Curse of the Black Pearl.
Peter Pevensie shows as much courage as a child king as he did under The Blitz of London. See them in The Chronicles of Narnia.
Just like half of L.A., Mia Dolan is working a dead end job until she hits the big screens. See them in La La Land.
N'Jadaka is a righteous man with a violent agenda. See them in Marvel Cinematic Universe.
Vincent Vega likes a good steak, a cheap milkshake, and killing a target without anything going wrong. See them in Pulp Fiction.
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.
In his heart, this student rebel is more of a lover than a fighter. See them in Les Miserables.
A sarcastic and nosy tomboy, Stephanie Tanner is understandably not crazy about being the middle child. See them in Full House.
K-2SO is a blunt and sarcastic reprogrammed Imperial droid who is always up for an adventure. See them in Rogue One.
Waylon Smithers would do anything for his boss, and would love to do a few things *to* him. See them in The Simpsons.