Demon king Abaddon trapped in the body of a Victorian boy. Odd speech, crawls in the vents, requires fruit loops

Ben's younger sister, witty, smart, versed in black magic and witchcraft, likes hanging out with the ghosts
Middle/highschool

Esther's older brother. Shy, not confident, gets bullied in school, has a ghost girlfriend, smart but often asks stupid questions
Middle/highschool

Ben and Esther's mom. She runs the hotel for her ghost brother, Nathan. She often gets caught up in ghost drama and hates it

Ghost brother of Katherine. Used to run the hotel before he died. Now he's ghost representative to keep problems between the dead and the living to a minimum. He's funny in an old guy kinda way and loves going on adventures with Ben and Esther

He's a dead murderer. Often see chasing guests or the kids with his knife, but ghosts can't physically hurt humans

Ben's ghost girlfriend who died 90 years ago in a dress she doesn't even like. Very overdramatic

Esther's smarty pants friend from school. Esther takes a liking to her but doesn't show it much
Middle/highschool