|Family:||Mateo (Brother), Unnamed/deceased Grandpa|
|Friends:||Ash, Misty, Tracey|
|First appearance:||The Crystal Onix|
|Voice actor:||Tara Jayne (English)|
Marissa is a character appearing in Pokémon: Adventures on the Orange Islands.
Season 2: Adventures on the Orange Islands
Marissa lives on Sunburst Island with her big brother Mateo. She helps him run a glass and crystal shop. Realizing that her brother needed the inspiration that her Grandpa once got from seeing the Crystal Onix, she decided to send out a message in a bottle to see if people would be able to help Mateo find it. The heroes responded to her call and helped Mateo find the Onix.
|OI007||The Crystal Onix|