The Black Moon Clan is the main group of villains in the second arc in the manga, and for most of the second season of the original Sailor Moon series. They are an evil organization originating from the planet Nemesis in the 30th Century. Using the tremendously strong, evil powers of the Dark Crystal, they attacked Crystal Tokyo, pursuing the mighty Silver Crystal and turned all of the people into statues, and forced them into a comatose state of suspended animation, as well as the Queen herself. They eventually traveled back to 20th Century, pursuing the Rabbit.
The members of the Black Moon Clan have black upside-down black crescent moons on their foreheads in comparison to the Silver Millennium's own golden crescent moon-shaped symbols. Also, the members of the Black Moon have diamond-shaped earrings made out of the tremendously dark and evil Black/Dark Crystal that allow them to teleport over large distances in a flash of darkness.
They are referred to as the Negamoon Family, or the Realm of the Dark Crystal in the DIC English dubbed.
The Black Moon clan consists of mainly:
- Wiseman (mastermind/advisor)
- Prince Demande
- The Spectre Sisters
- Black Lady (temporarily)
Droids were units used by the Black Moon Clan. In the manga, all of the droids were all similar looking in shape and form, and only able to produce screeches, while in the anime, they were all unique and were able to talk.
The Spectre Sisters used the droids in order to fill a Crystal Point with dark energy. Esmeraude did the same thing, but also ordered them to guard the Dark Wedge she implanted in the specific location.