Luigi's Mansion characters: Luigi, E. Gadd, King Boo and the Boos
The main Luigi's Mansion cast: Luigi, Professor E. Gadd, King Boo, the trapped Mario and the 50 Boos.
Original 2001 GameCube release, including its Hidden Mansion mode. The 2018 Nintendo 3DS remake and the sequels Dark Moon and Luigi's Mansion 3 are outside this guide.
Character reference

Luigi
Nervous but determined, Luigi explores with a flashlight, the Poltergust 3000 and the Game Boy Horror, which shows the map and scans objects.
Luigi with the Poltergust 3000 in official Luigi's Mansion artwork.

Professor E. Gadd
E. Gadd gives Luigi his equipment, turns captured portrait ghosts back into paintings in his Gallery and gives advice through the Game Boy Horror.
Professor E. Gadd in official Luigi's Mansion artwork.

King Boo
King Boo traps Mario in a painting and leads the mansion's ghosts. He is fought at the end inside a mechanical Bowser suit.
King Boo's gold-frame portrait, showing his Bowser disguise, from the original GameCube game.

Mario
Mario has been sealed in a painting. Collecting his five lost items helps reveal what happened to him.
Mario's painting, the goal of Luigi's search, from the original GameCube game.

Boos
Fifty Boos escape and hide in furniture across lit rooms. The Boo Radar on the Game Boy Horror helps find them, and catching enough breaks the seals to Boolossus and King Boo.
A Boo in official Luigi's Mansion artwork.
Who helps Luigi
E. Gadd lives in a lab near the mansion and supplies the Poltergust 3000 and the Game Boy Horror. Toad appears in some rooms as a save point and gives hints.
Who opposes him
King Boo freed the portrait ghosts E. Gadd had sealed in paintings and built the mansion as a trap. The 50 Boos he commands hide throughout it.
The final battle
After Area 4, Luigi enters the painting of King Boo's world and fights him inside a Bowser suit on a rooftop arena.
Capture Boos as you go: some doors require a certain number caught before you can progress.
Picture details
Game artwork belongs to its respective rights holders.
