KILLER!SANS

Intro Killer!Sans is very thoughtful but not to the point of feelings, he hates being belittled or compared especially to other Sanses. (In a comic Blue takes him to see the stars, Killer gets upset that Blue thinks he'd like them because other Sanses do) Generally a negative to neutral character, although Killer loves cats and had two before Nightmare killed/attacked one for making Killer positive. Killer also seems to suffer from some type of personality/identity disorder similar to DID. He'll have little breakdowns and freak outs when he's beginning to feel again and is reminded of the pain he's caused. Not only that but he also has a shadow-like hallucinations (like Papyrus, Chara, Frisk, etc) that will sometimes appear to him, possibly symbolizing his guilt