Hellen Gravely is the owner of The Last Resort and the main antagonist of Luigi's Mansion 3. Her name is likely a reference to "Hell" and "graves." She is female ghost in Super Mario Bros. series.

=Appearance= Hellen Gravely is a tall and slender female ghost with purple skin, blue hair in a beehive style, and yellow eyes. Being a ghost, she is transparent and glows. She has the face of a somewhat aging woman, with visible creases near her lips and thin, dark blue eyebrows, though she does wear makeup, notably red lipstick, purple eyeshadow and black eyelashes, as well as a good deal of jewelry, namely her necklace with a silver and hexagonal charm and a similarly shaped purple glowing jewel embedded in it. She also wears two circular earrings that are also silver with jewels in them, as well as a pearl bracelet on her left wrist. She has a sleeveless white dress with a long and blue fur boa and no upper back that tapers near the bottom, before flaring out into a circle shape as it rests on the ground. It has a window on the chest shaped like the jewel in King Boo's crown, as well as a diagonal dark blue stripe below the waist, beneath which the dress becomes a paler blue. Hellen's hairstyle, along with the white streak in her hair, may be a reference to The Bride of Frankenstein, while the tapering of her dress may be a reference to Morticia Addams from The Addams Family.