Doom Tree
These enemies were aliens from an unknown place in the universe. Their mother, the Doom Tree, was in trouble and so Ann and Alan hid on Earth, secretly stealing energy for the tree.

	Doom Tree This was the energy sucking tree that landed on Earth with two alien children, Alan and Ann. In the end, it was discovered that it was not energy that it needed to survive, but love. The plant was destroyed, but only to be reborn as a sapling that could grow with love.
	Alan Alan was one of the two aliens that came with the Doom Tree. He and the other alien, Ann, disguised themselves as humans and collected energy for the tree. He constantly persued Serena, only to discover true love and his true feelings for Ann.
	Ann Ann was one of the two aliens that came with the Doom Tree. She and the other alien, Alan, disguised themselves as humans and collected energy for the tree. She constantly persued Darien, only to discover true love and her true feelings for Alan.

	Doom Phantom ~ Wiseman He was the manipulative force driving Prince Diamond to do his bidding. A very powerful being, he latered turned out to be the Doom Phantom who wished to destroy Earth. In the very end, he was defeated by the power of the Silver Crystals of the present and future.
	Wicked Lady Rini, who had been feeling guilty about her mother's current state, was manipulated by the Wise Man and became the young woman known as Wicked Lady. She believed that no one loved her and that she was alone. It was her mother's love that broke the spell and returned her to the small child she was before.
	Prince Diamond He was the leader of the people of Nemesis and was completely in love with Neo Queen Serenity, Sailor Moon's future self. Many times he tried to hypnotize Sailor Moon to gain her love, but it was to no avail. In the end, Sailor Moon's compassion and truth made him see he was being deceived by Wise Man and died protecting her against him.
	Sapphire He was the younger brother to Prince Diamond and saw through the Wise Man's evil deceptions. He hated Sailor Moon because she was a distraction to his brother. In the end, he was killed by Wise Man when trying to stop his evil plot.
	Emerald Emerald was deeply in love with Prince Diamond and hated Sailor Moon out of jealousy. She was eventually deceived by Wise Man into thinking she could become the queen of the Negamoon. He gave her a dark crown of power which transformed her into a large dragon, but she was destroyed by Sailor Moon.
	Rubeus He was the first to appear in 20th Century Tokyo, along with the four sisters, Prisma, Avery, Bertie, and Catzy. He sent them out time and again to capture crystal points which could help them take over the future. After all four of the women betrayed him and were purified by Sailor Moon, he wasted no time in having a final battle with Sailor Moon. He was blown up in his UFO.
	Prisma She had bad people skills and fought fiercely in battle. The youngest of the four sisters, Prisma was also the last to be purified by Sailor Moon. Together, the four sisters opened a cosmetics shop. It was later learned that she was in love with Sapphire, the younger brother to Prince Diamond.
	Avery She was closest to her sister Prisma and fought along side her on many occassions. Avery had much better people skills than her sister. Once purified by Sailor Moon, the four sisters opened a cosmetics shop together.
	Bertie She was closest to her sister Catsy and and had a liking to the game of chess. In her final battle, Prisma and Avery abandoned her to take the defeat alone. She believed there was no love in the world and decided to freeze herself to death. It was her sister Catzy's love that made her change her mind. Once her other sisters were purified by Sailor Moon, the four opened a cosmetics shop together.
	Catzy The oldest of the four sisters, Catzy was the first to go into battle against the Sailor Scouts. She was in love with Rubeus, but he only used her and her feelings to get her to do his dirty work. In the end, she was convinced he was a scum and allowed herself to be purified by Sailor Moon. Once her other sisters were purified, the four opened a cosmetics shop together.