|First appearance:||Lunar Knights|
|Voice actor:||Chris Koprowski|
Polidori is an emissary from space, come to Earth to rule the cosmos and plunge the world into everlasting darkness for the benefit of the Immortal race. Polidori is seen as the final boss in Lunar Knights, and has a wide variety of attacks and forms.
Polidori's name is a reference to the English author John William Polidori, author of The Vampyre. His short story is among the earliest in English to be written on the subject.