They are half human and monsters (they have human names but also monster names too). All the monsters live in a hotel and their jobs are to keep (or kill) the players away from the Hotel, players trespass the hotel sometimes (and sometimes with a crucifix which they may use to protect themselves from most hostile entities).

Seek, or his human name (which he prefers), Wally, is one of the entities in the hotel in which he chases players between room 29-40. He never went past beyond room 40 so he (and figure) never met.