Queen Beryl
Queen Beryl is a general of Queen Metallia, and is pretty much the ruler, what she says goes. Queen Beryl wants to be with Prince Endymion, but can't because Princess serenity is with him. Her main goal was to capture the Ginzuishou (Silver Crystal). She first tried to get the crystal from Queen Serenity (Usagi's mom) but Queen Serenity was able to trap Queen Beryl in the ginzuishou, and send her away. She then used the very last amount of her energy to send them all to the future. Hoping if Queen Metallia and her generals ever came back, the senshi could defeat her for good.
When the final battle came along she asked for the maximum amount of energy, and it turned herself into Queen Metallia. Sailormoon was almost defeated but she called on the other senshi's spirits to help her defeat Queen Metallia. Each senshi stepped in calling forth their powers and with the power of them all, they sent Queen Metallia and her evil court away forever.