The Amazon Trio The Amazon Trio -Hawk's Eye, Tiger's Eye, and Fish Eye- was the Amazoness Quartet's predecessors. They looked for dream mirrors by finding a target and looking inside their dream mirror, to see if Pegasus was hiding in their dream. After failing too many times, something happened to them and they may or may not have lived happily ever after. I wouldn't want to spoil the ending, after all. :P
Zirconia Zirconia was Queen Nehelenia's main servant. Zirconia is Queen Zirconia in the Japanese Sailor Moon. But for some unknown reason, Zirconia is a guy in the dubbed version. Of course, Zirconia doesn't really look like anything. Zirconia basically just yelled at the Amazon Trio and the Amazoness Quartet to hurry up and find Pegasus. Then in the end, s/he tried ot get rid of the Sailor Senshi, and failed miserably, of course.
Zircon, captured by VesVes Zircon is Zirconia's little flying eyeball thing. It took pictures of people who had beautiful dreams, so the trio and the quartet could check their dream mirrors. The Amazoness Quartet liked chasing Zircon.
Queen Nehelenia Queen Nehelenia was the real leader of the Dead Moon Circus. She spent most of SailormoonSuperS trapped in a mirror. She wanted revenge on the "White Moon" because she was jealous, and hey, she'd been stuck in a mirror for a millenium or so! If you ask me, she's way too obsessed with her own beauty. She needs to get a grip on reality.