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Characters / Mermaid High

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  • Bare Your Midriff: The main four protagonists all wear clothing that exposes their stomachs.
  • Curtains Match the Window: Almost every single character's eyes match their hair.
  • Long Hair Is Feminine: Every female character has long hair that reaches at least waist lengthnote  In the stock art, the mermaids’ hair reaches series, it stretches down to their ankles.
  • Morphic Resonance: In human form the Merfriends keep their tops, but gain skirts and shoes which carry some bit of holdovers from their tails.
  • Punny Name: Most characters in the show have an ocean-based pun for a name.
  • Secret Identity: The Merfriends have to keep their mermaid halves a secret from all humans or they can't go back to the surface anymore.
  • Voluntary Shapeshifting: The Merfriends are in their true forms when underwater; they turn into humans when dry.

The Merfriends

Voiced by: Amy Correa Bell
I’m mermazing for shore!

The self-proclaimed glamorous member of the group, who's up for the latest fashions.

  • It's All About Me: Downplayed as she's not malicious about it, but her self-absorbed behavior annoys the others, not to mention her phone addiction got them discovered by Cora.
  • Phoneaholic Teenager: As she says herself in Episode 3, she "can't live without her shellphone".
  • Power Glows: She has a mesmerizing glow as stated in her profile.
  • The Fashionista: She loves "kriller" fashion as stated in her intro-vid.
  • Unexplained Accent: Searra has an unexplained Spanish accent despite likely being from the same place as the rest of her friends.

Voiced by: Brianna Knickerbocker

The sweet but shy member of the group, who likes boho styles.

  • Granola Girl: Heavily downplayed, but her bohemian-inspired fashion, love of yoga, veganism and phrase "save the sushi" seem to point her in this direction.
  • Informed Ability: According to her student ID, Finly has the ability to communicate with animals.

Voiced by: Marion Toro
Let's catch a wave!

The tomboyish member of the group who loves sports, such as surfing.

  • Academic Athlete: The most active and sporty of the group with her favorite subject being science.
  • Passionate Sports Girl: Oceania wears wetsuit inspired "athleisure" and loves surfing and speed.
  • The Leader: She's the one who seems to be in charge out of the four.
  • Super Speed: Her profile says she can swim or run very fast.

Voiced by: Danielle Judovits
New shell phone, who dis?

The smartest member of the group, known for dressing in wild punk-esque clothes.

  • Never Bareheaded: She never once takes off the octopus tentacle headband she wears.


Webseries Exclusive Characters

Voiced by: Triya Long

The Merfriends' best friend who's a lifeguard and blogger for Mermaid High, and the only one who knows their identities as mermaids.

Voiced by: Brianna Knickerbocker

Mermaid High's surf star and most popular student who loves to be in the spotlight.

  • Alpha Bitch: Catalina is stated to be a "stingray with a side of jelly" who loves being queen in Deep Dive Episode 2, heavily implying she is this. In episodes, she's shown to be egocentric, demanding and dismissive.
  • Attention Whore: Catalina demands that she be paid attention to while surfing in Episode 4 and becomes angry when Cora doesn’t comply.note 
  • Acquired Situational Narcissism: Deep Dive Episode 4 implies that once she became surf star, her ego increased exponentially.
  • Even Evil Has Standards: She's not "evil" per say, but in the background of Episode 5, she expresses clear surprise and shock at Dev's hostility and actions.
  • Hartman Hips: A shot of her in her wetsuit shows her hips are much wider than her chest.
  • Light-Haired Swimmer: Catalina is established to be a surf star in Episode 2.
  • Secret Chaser: To the Merfriends along with Devin.

Voiced by: Carrie Bernans

Pierleader captain of Mermaid High who frequently antagonizes the Merfriends.

Voiced by: Zeno Robinson

Catalina's ex and the subject of both Oceanna's and Searra's crushes.

  • Academic Athlete: Deep Dive Episode 2 states that he "has many, many thoughts" and loves deep conversations.
  • Lovable Jock: He surfs and offers to show Oceanna how, as well as being nice to the girls in general.
  • Nobody Touches the Hair: He doesn't let anyone touch his hair according to Deep Dive Episode 2.

Voiced by: Zeno Robinson

Devin's ex, a lover of karaoke and a vegan skateboarder who's the coolest guy at Mermaid High.

     Coach Sue Nami 
Voiced by: Marissa Meizel
  • Big Eater: Her first scene in episode 5 is her messily chowing down on sushi, and after giving the assignment declares "Nami needs nom nom".
  • Dissonant Laughter: Likes to laugh maniacally for no reason as seen in episodes 3 and 5. She sounds like a maniac usually, and her laughter emphasizes her craziness.
  • The Faceless: In Episode 3. Averted by episode 5 where her face is shown at the very beginning.
  • Punny Name: Sue Nami sounds a lot like "Tsunami".