Sailor Neptune is one of the four Outer Senshi of the Solar System, and was the ninth Sailor Senshi to be introduced in the manga. Her civilian identity is Michiru Kaioh, or Michelle depending on the dub you follow. Her attacks are based around the ocean or sea, precognition, and powers granted by her mirror. This is the original depiction of the character created by Naoko Takeuchi.
She is voiced by Lauren Landa.
Legends of the Multi-Universe (Menslady's Story)
When the Sailor Soldiers were separated, she too thought it best it should be that way, since looking for her and the other missing soldiers would risk the lives of the Inner soldiers. When Sailor Moon found her, she too was very angry. But now, because of Angewomon's words of wisdom, Sailor Neptune will also stick with her fellow Sailor Soldiers to the bitter end of this war.
Neptune Deep Submerge - summons a large orb of water energy
Neptune Submarine Reflection - Sailor Neptune uses her Deep Aqua mirror to see through illusions, deflect attacks, reveal an enemy's weakness, or send a blast of energy.
Neptune Eternal Make-up - allows Sailor Neptune to become Eternal Sailor Neptune
Neptune Submarine Violon Tide - Sailor Neptune summons a tsunami by playing a special tune on her violin.