Because you like Cosmo Kramer in Seinfeld
A ruthless militant, Raza will do anything to take down Tony Stark. See them in Marvel Cinematic Universe.
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.
John Yossarian is trapped in irony as he must be insane to leave the war but if he does try to leave, he'll be deemed sane and will be forced to stay, See them in Catch-22.
A brilliant "extractor," Dom Cobb has spent the past few years running from the authorities and his inner demons. See them in Inception.
Jim Stark is a teen torn apart by what the world asks of him. See them in Rebel Without A Cause.
Jax Teller can be cool or vengeful, calm or wrathful, depending on the situation. See them in Sons of Anarchy.
All the world's a stage, and Missy Piggy's never one to give up the spotlight. See them in The Muppet Movie.
Big Boss is a disillusioned mercenary commander who wants to create a world for soldiers (and soldiers alone). See them in Metal Gear Series.
Alien insists on taking the party with him wherever he goes. And if you're lucky, you'll get to see his gun collection. See them in Spring Breakers.