Because you like Henry Spencer in Eraserhead
Oscar Martinez is a national accountant in an office of weirdos. See them in The Office.
Dr. Gordon Freeman is a brilliant physicist is a quiet hero. And given all the violent aliens, he better be. See them in Half-Life.
Alex DeLarge likes his favorite milk-based, drug-laced cocktail. It helps him get in the mood for a night of "ultra violence." See them in A Clockwork Orange.
Don't ask the ruthless queen of the Tokyo underworld any questions unless you're fine with losing a limb. See them in Kill Bill vol. 1.
Hayley Stark is a sarcastic 14-year-old with an unusual passion. See them in Hard Candy.
A self-proclaimed diva, Mercedes Jones is on the hunt for a stage worthy of her talents. See them in Glee.
Dante Alighieri is a crusader fighting his way to absolution. See them in Dante's Inferno.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
Catwoman might be slightly unhinged, but you can't say this feline villainess isn't confident. See them in DC Extended Universe.
After having his mind altered after a bad breakup, Joel Barish is not convinced that ignorance is bliss. See them in Eternal Sunshine of the Spotless Mind.