Because you like Eli Cash in The Royal Tenenbaums

Khan Noonien Singh is super strong, super smart, and out for revenge. He always seems to be two steps ahead of his enemies. See them in Star Trek Into Darkness.

Peter Venkman's "research" projects are designed to get undergraduate students to sleep with him. Though it turns out he can bust ghosts. See them in Ghostbusters.

Kilgrave is a domineering, abusive boyfriend. Then, add in the power of mind control. See them in Marvel Cinematic Universe.

Basil Hallward is dominated, soul, brain, and power by Dorian. See them in Dorian Gray.

Relentlessly cheerful and optimistic, Erin Hannon is an office receptionist. See them in The Office.

Spyro the Dragon loves getting into trouble around the Dragon Realms. See them in Spyro the Dragon.

A determined and cold-hearted spy, Cassian Andor will do what it takes to stand up to the evil Galatic Empire. See them in Rogue One.

Christian is a romantic who for some reason won't stop singing everything he feels. See them in Moulin Rouge.

There isn't a man in the world who executes his job with more finesse than Monsieur Gustave H. See them in The Grand Budapest Hotel.

Morpheus is wise enough to see into the bones of the world. See them in The Matrix.

His name is Inigo Montoya and whoever killed his father should be prepared to die. See them in The Princess Bride.

Victor Frankenstein can create life, so he's pretty awesome if he says so himself. See them in Frankenstein.