Charon the Dusknoir
He's been seen lately hanging around Gambitville. He's been there since... since when, exactly? Well, since longer than anyone at all can remember. Even longer than Jury can remember. Jury won't talk to or address Charon in any way (for some reason he won't divulge when asked); you might expect this to have become a problem at some point, but Charon never breaks any laws, so it hasn't really mattered.
Sometimes Pokemon can catch glimpses of a single red eye down in the well. This is thought to be Charon's main residence when he's not floating around town, looking for ghosts to escort back home.
Is it only ghosts? He won't say when asked. There must be some way to see where he ferries spirits off to, don't you think?