Because you like Montgomery Scott in Star Trek
Armin Arlert was wrong. This world hasn't become hell; it's been hell. He just couldn't see it before. See them in Attack on Titan.
Stoic, cynical, and brilliant, Solid Snake was genetically engineered to be the perfect soldier. See them in Metal Gear Series.
A daring conman, Flynn Rider is so charismatic that you might not mind when he steals from you. See them in Tangled.
Southern belle Scarlett O'Hara is a heart-melter who has no problem looking after herself. See them in Gone with the Wind.
Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.
Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.
An aristocrat-turned-tomb-raider, Lara Croft does her best thinking while plunging off cliffs. See them in Lara Croft: Tomb Raider.
Bella Swan thinks of it as her job to help her parents and protect her friends, even though it often ends up the other way around. See them in Twilight.
Quirky and wildly imaginative, Amelie finds joy in the unnoticed things in life and aspires to bring happiness to all. See them in Amelie.
Ava may just be the perfect woman. So long as she can pass a Turing test. See them in Ex Machina.
If you need her, Lisa Simpson will be in her room with her saxophone and a good book. See them in The Simpsons.