Damon

who is he... what is he doing...

tends the graves behind an old chapel that has been left to rot
no-one has asked him to do this, he took it upon himself
states that he 'has his reasons' but won't explain what they are
chain-smokes - no he won't led you a cigarette, get your own
can shift to a more regular human appearance but it takes energy to maintain
died in the mid-90s and hasn't been able to lose the grunge aesthetic
doesn't know why he's a demon now but whatever, he'll take it