Because you like William Wallace in Braveheart
James Gordon happens to be the one guy in Gotham City with proper morals who doesn't also run around in a cape. See them in DC Extended Universe.
As an undercover cop, Schmidt is getting to relive high school as a cool kid. See them in 21 Jump Street.
She's a survivor of gunshots, of being buried alive, nand of paralysis. And now Beatrix Kiddo is going to make her abusers pay. See them in Kill Bill vol. 1.
Realizing that New York City was in his blood, Wilson Fisk will now do anything to make Hell's Kitchen a better place. See them in Marvel Cinematic Universe.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
David Wooderson has clocked in hundreds of hours cruising around town looking for fun. See them in Dazed and Confused.
Fate has forced Amuro into the terrors of war, and he must use the Gundam and all of its power if he is to make it out alive. See them in Mobile Suit Gundam Series.
Just because Dracula wants to suck your blood doesn't mean he's not a gentleman. See them in Dracula.
A powerful dragon-hunting warrior, Dovahkiin is destined for great things. See them in The Elder Scrolls V: Skyrim.
Omar Little is a pretty chill guy, as long as you can forgive the stealing and killing people. See them in The Wire.