Annaliese: my favorite cantankerous mermaid. Selfish, dark, and willing to do almost anything to get her way. She was not born a mermaid nor on the island. She was washed overboard her parent's luxury liner along with her brother. She was cursed by the witches for some awful thing she and her brother did and changed from witches to merfolk.

Johannes: my other favorite mermaid. boy. brother. Annaliese's brother to be exact. He fell in love with sisters Heidi and Helen (first Heidi, then Helen). He's the calmer, more collected sibling. He was not born a merboy; he was cursed by the witches with his sister for some awful thing they did. He is often scheming for a way to get out of the water as well. He once hooked up with a selkie; he doesn't know she had a child (who just so happens to be Dimas).

Dimas' heritage is a little sketchy. He is part selkie, though he inherited mostly merfolk traits. His mother was a selkie who had a tryst with Johannes. She died in his early youth (since merfolk are immortal and selkies are shortlived). He was passed to Cat's family to be raised since they understood the importance of discretion about their lineage. He is Cat's best friend; they stick together through thick and thin. They learned to defend themselves at a young age and are often sparing partners. He's strong and quick to judge. Very cheerful though set in his ways.

Cat has sketchy heritage as well, which is why she bonded so well with Dimas (both feel like outcasts from their tribe, though they do not often complain of it), besides the fact that they were raised together. Her father was the selkie; she knew him but he died when she was still young and he never officially claimed her (believing it was for her own well being). Her mother raised her and Dimas as if they were a normal merfolk family. Cat is loyal and calm, very smart and strong.