Nine Dead/YMMV

Complete Monster: Coogan. He's a pedophile, a rapist and a murderer and looks downright excited when one of his cellmates is shot. Nice guy.
- Kelly starts moving into this territory bit by bit towards the end of the movie, doing whatever is necessary to surivive.
  - Sully has a few moments of this what with FIREBOMBING someone's house and killing several people. His standards may redeem him though. YMMV.