Because you like Mr. White in Reservoir Dogs
Ash Williams is a houseware clerk at S-Mart and the Chosen One. See them in The Evil Dead.
Loyal to his family and associates and distrustful of anyone else, Tony Soprano is a good guy to have on your side. See them in The Sopranos.
Hans Landa doesn't seem to have issues with Jews, but he hunts them because he's determined to do his job well. See them in Inglourious Basterds.
Leone Montana is a fearless hitman with a surprisingly sensitive side. See them in Leon: The Professional.
Tony Montana makes up for his language barrier with his immense skill at cursing as loud and effectively as humanly possible. See them in Scarface.
Leonard "Bones" McCoy is passionate, moral, and ready to stitch you back together. See them in Star Trek.
The "runt" of his biker gang, Tetsuo Shima grapples with a perpetual inferiority complex. See them in Akira.
Hunting ghosts is both a job and a passion for Abby Yates. See them in Ghostbusters (2016).
Simon Belmont is a vampire hunter bravely carrying on the family business. See them in Castlevania.
Jim Stark is a teen torn apart by what the world asks of him. See them in Rebel Without A Cause.
C is for cookie, and that's more than good enough for him. See them in Sesame Street.
Harrison Wells is a brilliant scientist full of secrets. See them in DC Extended Universe.