Sailor Ani-mates
I don't know much on these villains

Sailor Galaxia
Sailor Galaxia is a Sailor Scout that comes from another solar system. Her main goal is to rule the universe (isn't that what every villain wants?). She already has 80% of the universe and she is after ours. She is searching for the star seed, whichi is located in the body of a human (what's new on that part? Rainbow crystals, Pure Hearts, Dream Mirrors all from a body of a human). She is known as the Golden Star.
Sailor Iron Mouse
Sailor Iron Mouse was the first to work under Galaxia. Her job was to find the star seed. She wore pinstriped clothes quite often and traveled in a British telephone box. She tried to take the star seed of Sailor Moon but had failed so many times that Galaxia killed her by taking her bracelets away.
Sailor Aluminum Siren
Sailor Aluminum Siren was the next Animate. Once she tried to take Sailor Moon's star seed, but was stopped by Chibi-Chibi Moon. After too many failures, Galaxia took her bracelets and killed her.
Sailor Lead Crow
Sailor Lead Crow was the total rival of Sailor Aluminum Siren. Every time Siren went to Earth, Lead Crow would follow. She was devastated when Siren was killed. Although, rivals, they did have a strange bond. Tin Cat and Lead Crow had to work together but Tin Cat killed Sailor Lead Crow in an accident by falling in a black that was created.
Sailor Tin Cat
Sailor Tin Cat was the last Animate. She was vindictive, power-hungry and conniving (sounds like some of the other female villains to Sailor Moon). She appeared just before Siren's death. She pointed out Siren's failures to Galaxia (what a rat). Lead Crow had to work with Tin Cat and they did not work well. Tin Cat messed up one or more of Crow's attacks. Galaxia later killed Tin Cat when Galaxia took Tin Cat's bracelets.