Marina is a mermaid who is in love with Prince Justin, a human prince from a kingdom on the shore. Marina saves Justin when he almost drowns after a chase from a giant Cyclops and a shipwreck attack from a three-headed sea serpent. She then makes a deal with Hedwig the sea witch to become human temporarily to try to win Justin's love. Justin and Marina become close but Justin thinks that Princess Cecily, a human princess, was the one who saved him from drowning and therefore he gets engaged to her. Justin eventually remembers that Marina was the one who saved his life but by then Marina becomes a mermaid again. The two continue to secretly meet and try to find a way to be together while dealing with Hedwig's plans to take over the kingdom and Cecily's attempts to get Justin to marry her. Marina and Justin are aided by their underwater friends Winnie the seahorse, Bobo the tropical fish, and Ridley the sea otter. They are also aided by the wizard Anselm and by Justin's page Chauncey.
Characters
Main
Marina (voiced by Sonja Ball) is a mermaid with waist-length golden blonde hair and green tail who is the protagonist of the show. After she saves Prince Justin of Gandor, she falls in love with him and wishes to become human. She is not the same Marina from the 1975 film.
Prince Justin (voiced by Thor Bishopric) – Prince of Gandor and Marina's boyfriend.
Winnie (voiced by Anik Matern) is Marina's seahorse friend and constant companion. Unlike real world seahorses, she has the ability to scream at very high pitches which causes people to pass out. She also has the ability to fly when she is out of water.
Bobo (voiced by Carlyle Miller) is Marina's tropical fish friend. He often spies on Hedwig and reports back to Marina and the rest of the gang.
Ridley (voiced by Arthur Holden) is Marina's sea otter friend and Anselm's companion. Unlike real world sea otters, he seems to be able to breathe under water indefinitely. He's also rather small for a sea otter, though he could just be young.
Anselm (voiced by Aron Tager) is Prince Justin's tutor and secretly a wizard who was once in love with Hedwig in their youth. He helps Prince Justin and Marina out where he provides a potion to help Prince Justin temporarily breathe underwater and Marina to briefly become human.
Chauncey (voiced by Gordon Masten) is Prince Justin's short, goofy, and loyal page.
