Because you like Alan Schaefer in Predator

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.

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.

Wei Shen is an undercover cop on a mission for justice (or at least vengeance). See them in Sleeping Dogs.

Extremely violent and loyal, Sandor Clegane is called the Hound for a reason. See them in Game of Thrones.

This cannibalistic villain may be a loner, but Killer Croc doesn't have problems with self-confidence. See them in Suicide Squad.

Once described as a "beautiful, tropical fish," Ann Perkins exudes warmth, and unlike most of her friends she also has common sense. See them in Parks and Recreation.

Handsome Jack is wearing a mask of his own face to hide his scarred real one. See them in Borderlands Series.

Cyclops shoots lasers out of his eyes, destroying anything in his line of sight. See them in X-Men Series.

A man of the court, Lord Varys knows how to manipulate it better than anyone. See them in Game of Thrones.

Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.

Aldo Raine is in the killing Nazi business. And as he says, business is a-boomin'. See them in Inglourious Basterds.

Jorah Mormont is loyal to his queen. And he's quite in love with her as well. See them in Game of Thrones.