BioMarina is a Trainer from New Bark Town that appeared in the The Legend of Thunder! special.
Zoey showed a video of Marina on her laptop that indicated that Marina's Feraligatr had evolved.
Marina's Jigglypuff seems to enter double contests with her other Pokemon.
Marina's Croconaw is the evolved form of her original starter Pokémon Totodile that she received from Professor Elm. Marina's Croconaw started a battle against Jimmy's Typhlosion but it was cut short due to extremely bad weather.
Like Ash's Pikachu, Marina's Misdreavus seems to say out of its Pokeball most of the time. During a confrontation with Team Rocket grunts Attila and Hun, Misdreavus used its Perish Song to disable Steelix and Skarmory before they retreated.
Marina's Totodile was her starter Pokemon that she received from Professor Elm. It evolved into a Croconaw and then a Feraligatr.