Mermista

Mermista is a dark-skinned woman with a thicker, rounder body type, black-painted nails, brown eyes, and dark eyebrows. She has deep teal hair with a pattern that resembles a wave, referencing her powers and kingdom, which she wears in a plait or puffy ponytail that rests on her shoulder. She wears a tracksuit with a teal and turquoise scale design and a gold collar, turquoise pauldrons with a gold outline, golden bracelets that cover both wrists completely and golden ear cuffs. She wears high-top sneakers that consist of turquoise and blue tongues, gold vamps, white soles and a lighter blue decrotating the backs.

Sarcastic and blunt, Mermista keeps a stony face and a cool head most of the time, usually finding it hard to express her true feelings and masking them behind a relaxed exterior. She is stoic and has no problem speaking her mind, but often shies away from verbally expressing her feelings, particularly the ones she holds towards Sea Hawk, who later becomes her boyfriend.

Mermista does not back away from hard or difficult work, though requesting her to do undesirable jobs typically comes with some complaint. She bravely travelled the sewers of the Fright Zone to free Glimmer and Bow, albeit reluctantly. When asked to do this during the plan, she responded "Mermista will do what? She can be very dramatic when she gets into the role.

Mermista has been implied to have a romantic history with Sea Hawk and it is referenced that the two were quite close. While she claims to dislike him and often behaves apathetically or annoyed by his presence, she invites him to the Princess Prom, showing that she does carry affection for him despite her constant remarks claiming otherwise, as "just her ride." It is also mentioned that they've gone on dates in the past, but Sea Hawk often messed them up, such as challenging the doorman to a duel at the Dolphin Social and setting their gondola on fire in a Tunnel of Love. Often when claiming that he's not her "plus one" but simply "her ride", she is seen blushing and looking off, as if she doesn't believe what she's saying.

Mermista is the princess of Salineas and a member of the Princess Alliance in the Rebellion. She is one of the Elemental Princesses.

Close friends include She Ra / Adora, Glimmer, Catra later on, Bow, Frosta, and the other princesses.