"The boys are in TROUBLE. A sea-gull told me!"
Mermista is a dark-skinned girl with a thicker body type and deep teal hair with a pattern that resembles a wave, referencing her powers and kingdom. She wears a teal tracksuit with dark scales and a gold collar, gold and teal pauldrons, golden bracelets, golden ear cuffs, and gold and teal high-top sneakers.
Sarcastic and blunt, Mermista keeps a stony face and a cool head most of the time. That doesn't mean she's emotionless; she just finds it hard to express her true feelings. She's stoic and has no problem speaking her mind, but often shies away from verbally expressing her feelings (particularly about Sea Hawk).
Mermista does not back away from hard or difficult work. She bravely traveled the sewers of the Fright Zone to free Glimmer and Bow. She can be very dramatic when she gets into the role. ("Mer-Mysteries")
Powers and abilities
- Pearl connection: Mermista is connected to the Pearl, thus making her one of the elemental princesses. Her connection grants her a variety of abilities, many revolving around water.
- Hydrokinesis: Mermista is able to manipulate and control water. She is seen multiple times controlling vast quantities of water, a notable example is her arrival to the Battle of Bright Moon. She manipulates a giant wave of water with enough force to life her boat and enough precision to shield Adora, Bow, Spinnerella and Netossa from the wave. In season 2 she uses her power to help overwhelm a Horde castle near a river.
- Mermaid Transformation: Mermista is able to switch between two form, one with legs and one with a mermaid's scaly tail. While it isn't made explicitly clear if this power derives from The Pearl or not, in all likelihood, it does.
- Aura generation: When united with the other elemental princesses Mermista can generate an aura that greatly amplifies her powers. Her aura manifests in the color cyan.
- Trident proficiency: Mermista is shown to be proficient in using her trident in battle.
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 the man and often behaves apathetically or annoyed by his presence, she invites him to the Princess Prom (despite her claims that he's "just her ride") showing that she does carry affection for the man despite her claims otherwise. It is also said that they've gone on dates in the past, but Sea Hawk often messed them up, such as challenging someone to a duel at dinner and setting their boat 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.
Their friendship remains strong, but mostly with Sea Hawk trying to hang out with her and her friends. They also team up from time to time with the rest of the Heroes.
Mermista respects Adora and joined The Rebellion because of her. She follows Adora's strategies even to the point of swimming in the sewers to rescue Glimmer and Bow. She named herself Sea-Ra because of Adora. While she leaves the Princess Alliance to protect herself and her kingdom in Season 1 she returned during the Battle of Bright Moon and has since become unquestioningly loyal to Adora and the rest of her friends. She also participates in attacks on Horde targets where she is essential to several Alliance wins.
Mermista starts off by rebuffing Glimmer's call for aid but pledges her support after She-Ra and team defeated the Horde at the Sea Gate. They work well together except for that time that Glimmer teleported Mermista out of the war council and back to her lookout post. After Mermista rejoined the planning session the hero's teamed up and defeated the Horde multiple times. When The Horde devastated Salineas Glimmer welcomed Mermista to Bright Moon.
Usually they get along, although Mermista's acerbic wit sometimes puts a harsh on Perfuma's mellow. They've got each other's back even when they were in disagreement as to whom would be the best flower arranger for Glimmer's coronation.
Mermista is the ruler of the kingdom of Salineas; however, when her father retired he left her a kingdom that was crumbling.
First seen ruling over an empty kingdom with only one subject, her initial reaction to the arrival of Adora and friends is one of resignation. Glimmer, Bow, Adora and Sea Hawk arrive just before the Horde does. They arrive in Salineas to find that the kingdom is woefully under staffed and in jeopardy of falling to the Horde. And that many residents have fled because the Sea-Gate is falling apart. Glimmer offers to help if Salineas joins the Alliance. Mermista and Sea Hawk trade jabs over him getting her kicked out of the Dolphin Social for challenging a doorman to a duel and the time he set their gondola alight in the Tunnel of Love, presumably on a date gone horribly wrong. Adora finds out that the Sea-Gate gets it's power from The Pearl, Salineas' runestone. She deduces that the connection between the gate and Runestone must be damaged. She agrees to let She-Ra fix the broken Sea Gate and joins the alliance after the hero's fix the gate and send the Horde soldiers packing. She then gives Sea Hawk a new ship to replace the one he set on fire telling him not to set on fire him, to which he replied that he won't promise anything.
At the Princess Prom Adora notices how Sea Hawk is there, singing about his date ― Mermista. Of course, Mermista denies that he's anything but her ride, but her face turns red with embarrassment. Mermista then leaves to find a Kelp bar and Sea Hawk follows just as Bow and Perfuma arrive.
After Bow and Glimmer were abducted by the Horde Mermista, Perfuma, Sea Hawk and Entrapta volunteered to rescue Glimmer with Adora and mounted a daring escape. Mermista endured more than anyone should to get inside the Horde compound and let the others inside The Fright Zone. After the hero's free Glimmer and Bow and think that Entrapta has died, Mermista insists on going home and leaves the Princess Alliance. Mermista summarized everyone's concerns when she says that she can't risk her kingdom or anyone else's life by staying with The Rebellion. Later Mermista re-joined the Alliance to defend Bright Moon from the Horde attack.
Mermista joined the rest to destroy bots and eventually capture one for Bow to study. She helped plan an attack on a Horde held tower, where she accidentally destroyed the Horde's spy-bot. She then harnessed the power of water to help take the tower from the Horde soldiers.
In Bright Moon, Bow, Perfuma, Frosta, and Mermista spy on Angella and Glimmer's argument. Glimmer argues for decisive action to save the planet which is imminently in danger. Later, beneath the Moonstone, Shadow Weaver prepares to draw power from it even as Frosta, Perfuma, and Mermista arrive. They insist on going as well and tell Shadow Weaver to "make that thing bigger", referring to her sorcerers glyphs. After teleporting to The Fright Zone and engaging with several Horde soldiers Mermista and Frosta hold them off while Shadow Weaver, Bow, and Glimmer move on.
At the coronation Mermista gets the job of flower decorator, much to Perfuma's angst. She then opened the waterfall that allowed Glimmer, Bow and Adora into the caves and hall beneath Bright Moon.
After suffering several defeats at the hands of The Horde the heroes suspect a Horde spy in their midst. Mermista attempts to sleuth them out, using tactics from "Mer-Mystery" novels to question nearly everyone in Bright Moon. As Mermista's "investigation" continues, they uncover contradictory testimonials from officers and Princesses about receiving orders from different Princesses when they were ostensibly somewhere else, who had no recollection of giving such orders, but Mermista promptly discards this. At the same time, Bow becomes convinced that he is actually the spy, to everyone's consternation.
Double Trouble, who'd been caught as the spy outright gloated about how the entire exercise was merely to stall the Princesses until the battle was over. Distraught over the loss of Salineas, Glimmer quickly teleported directly there, where Mermista broke down at the sight of her fallen and ruined city.During the aftermath of the loss of Salineas the boys decide to have a night on the town, where they get captured by pirates who turn them over to The Horde. Sea Hawk then sends a seagull to Mermista to call for help. After recieveing the seagull's message she barges into the hallway yelling "The boys are in trouble, a seagull told me!" Moments later, Glimmer teleports onto the ship with Mermista and Adora in tow. Adora transforms into She-Ra, bowling the Horde sailors over, and everyone works together to fight off the outpouring Horde sailors, singing together in glee-styled rock anthem. Mermista is glad to be back in the fight now that her depression has past and Bright Moon's ice cream stores are empty.
After the Heart of Etheria is activated the Princesses all surge with newfound power. Mermista easily batters entire fleets with tidal waves while Frosta and Perfuma lay waste to legions of Horde robots around themselves with blasts of ice and vegetation. As princesses all across Etheria came under the Heart of Etheria's control. First Ones' writing appeared on each princess and Runestone. Mermista fell from her vortex that she was using to destroy a Horde ship, and collapsed as did the other princesses. While this happens, light and power surges up from the planet into the skies. She-Ra shattered the Sword of Protection releasing her and all the princesses from it's control. Only to see the stars and Horde Prime's Fleet surround Etheria.
- Mermista's astrological sign is a Libra/Scorpio cusp.
- She's shown to possibly have a crush on She-Ra.