Mario's scaredy-cat brother is what you'd call an... unlikely hero. A haunted mansion is his worst nightmare - he's scared of ghosts, not to mention the dark, lightning, sudden movements, loud noises... Despite all this, he still offers to tackle Professor E. Gadd's poltergeist problem out of friendship, or maybe he's just afraid of saying no, too.

An eccentric scientist who invented the Poltergust 5000, a big improvement on the previous 3000 model. After the ghosts turn hostile and take over mansions, he calls on his old friend Luigi to help out.

These audacious apparitions used to be friendly, but they turned hostile after the Dark Moon shattered. They're wily things, and not afraid to use items and their surroundings to mess with Luigi and his quest!

These Toads were helping E. Gadd with his research, but after the purple mist descended on Evershade Valley they were kidnapped by ghosts and haven’t been seen since. Where could they be..?

Has a big appetite and loves shiny objects, which often leads to him gobbling up crucial items just as Luigi’s about to grab them. Find a golden bone and maybe this haunting hound will become a little more helpful when Luigi’s in a pinch.

Those teeth! That wicked grin! These ghastly ghouls are experts at remaining unseen, but they’ve taken it to a new level this time. Use the Dark-Light Device and track them all down!

This spooky sovereign shattered the Dark Moon, causing the ghosts to turn mischievous. Piece the Dark Moon back together and restore peace to Evershade Valley!