Because you like Leonard Hofstadter in The Big Bang Theory
Light Yagami has a plan to make a better world, and morals won't stop him. See them in Death Note.
Good fashion? Check. Snarky quips? Check. Supernatural evil-fighting powers? Also check. See them in Buffy the Vampire Slayer.
It's certainly easier to get great footage of crimes when you can guarantee they'll happen. See them in Nightcrawler.
A contemptuous aristocrat, Violet Crawley is unafraid to exert her authority and voice her opinions, no matter how harsh they are. See them in Downton Abbey.
Whether she's working as a mild-mannered assistant or an all-powerful superhero, Kara Danvers is defined above all by her huge heart. See them in Supergirl.
Though cynical about the world, Shuya Nanahara is caring and protective towards his friends. See them in Battle Royale.
Community-driven but practical, Calvin Palmer is a natural leader even if he doesn't always see it. See them in Barbershop.
Mikasa Ackerman is a near-perfect soldier who won't break her stone-faced expression whether she's killing foes or protecting loved ones. See them in Attack on Titan.
Holden Caulfield is convinced that the whole adult world is full of phonies. See them in The Catcher in the Rye.
Edward Kenway can be reckless and greedy, but he's learning that his ancient ancestry carries a noble burden. See them in Assassin's Creed Series.
Ezio Auditore Da Firenze is a little short-tempered, a lot fun-loving. See them in Assassin's Creed Series.