The Shadow Galactica were the villians of Sailorstars. They worked under Galaxia, who worked for Chaos. Their mission was to collect the sailor crystals.

Sailor Ironmouse-She first appears in act 43 at the Three Light/Kaiou Michiru concert. She uses her "Galactica Crunch" but gets no sailor crystals. She is attacked by Uranus and Neptune and destroyed by "Star Sensitive Inferno"

Sailor Aluminum Siren-She first appears in act 44, attacking the senshi on the school roof. She uses her "Galactica Tsunami" which the senshi block. She manages to get the crystals of Jupiter and Mercury before she is killed by Sailorstarmaker and Sailorstarfighter

Sailor Leadcrow-Leadcrow appears in act 45 when she takes the sailor crystals of Phobos and Demios at the Hiwaka Jinja. She took the crystal of Sailor Coronis to become a fake senshi and is from the planet Coronis. She almost takes the crystals of Mars and Venus but is killed by Sailormoon

Sailor TinNyanko-Sailor TinNyanko first appears in act 45, poising as an exchange student from Libya. In act 46 she confronts Luna and Artemis on the school roof. They are all from the same planet Mau. She uses her "Galactia Puppet" to hit the cresent moons on their forehead, living them unable to talk. She is killed by Galaxia in act 47 for her failure.

Sailors Lethe and Mnemosyne-These two soldiers first appear in act 48. Lethe leads Sailormoon, Kakyuu and the Starlights across her River of Oblivion and lets them fall in, making them loose their memory. Lethe is about to kill Sailormoon with Mnemosyne appears, saying let Galaxia have the final punishment. She gives everyone water from her River or Memory, restroing their memory. The duo talk with Sailormoon explaining they they joined with Galaxia. Suddenly two Anima-Mates appear and kill them.

Sailor Heavy Metal Papillion-She appears in act 49, calling herself the soul hunter. She ties vines around Kakyuu, Sailormoon and ChibiChibi and hits them with flames until Chibimoon and the Sailor Quartet appear. She is destroyed by "Amazoness Jungle Arrow"

Sailors Chi and Phi-This duo appears in act 49, calling themselves the Star Gardeners. Phi is destroyed by Sailormoon and Chi is destroyed by the Sailor Quartet.

Galaxia-Galaxia first appeared in act 43, when she takes the crystal of Mamoru. She also shows up in act 45, taking the crystals of Mars and Venus. She and Sailormoon confront each other in act 50. Her goal was to be ruler of the galaxy and she needed Sailormoon's crystal to do so. She is destoyed in act 50 when her bracelets shatter, leaving only her brooch.

Chaos-Chaos was a mass of energy who had become one with the Galaxy Cauldron. It was revealed that all the villians from previous times were forms of Chaos. Chaos is destroyed after Sailormoon jumps into the Cauldron and calls on the sailor crystals to destroy Chaos.