Because you like Jane Eyre in Jane Eyre
Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.
Nancy Wheeler is popular but independent, sheltered but gutsy. See them in Stranger Things.
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 brave but pessimistic nobleman, Boromir knows one does not simply walk into Mordor. See them in The Lord of the Rings.
Fox McCloud leads a team of pilots through the Lylat System in search of the evil genius Andross, the villain that killed his father. See them in Star Fox.
Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.
Quentin Coldwater has always suspected there was something different about him, and now he has the chance to prove it. See them in The Magicians.
It doesn't matter how noble or brave he is. Jon Snow is a bastard, and people don't let him forget it. See them in Game of Thrones.
Carl Fredricksen is a crotchety old man who may just have it in him to take one last, great adventure. See them in Up.
Don't let Princess Peach's sweet, gentle nature fool you. Princess Peach can put up a good fight. See them in Super Mario Bros..
Fox Mulder is a devoted believer in aliens, monsters, and that the truth is out there. See them in The X-Files.
Phil Coulson is a deadly field agent with the demeanor of a friendly dad. See them in Marvel Cinematic Universe.