Captain Marianna Perola de Fantasma is an older veteran pirate who has been in the business for a good many years and has a reputation for being laid-back and fun loving, but you would not want to be on her bad side, she did not get this far as a Pirate by being a big huggable pushover. She dislikes unnecessary acts of violence and cruelty, and is generally honest and honorable with a side of trickery and mischief. She usually won't open lie (though she has no qualms with doing so if necessary) but will withhold information tactically finding it more fun to trick pokemon with the technical truth. She tends to use her calm and friendly demeanor to negotiate her way through problems, and if her charm doesn't work then negotiations always go better with some good drinks and lots of food, however her jolly carefree demeanor ends immediately to those who threaten anyone under her protection.

In her youth she was considerably more of a spitfire; she took a great many risks chasing after treasure and lost some things along the way, but her Solosis buddy Zosimo has helped her recover and covers for some of her losses forming new limbs from the goo that surrounds their body. He'd be her right-hand mon if he weren't actually her left hand.
Zosimo does not do a lot of talking, at least not in any language that anybody comprehends except for Marianna who understands him perfectly. Probably because of Telepathy. They also have other unique psionic abilities not because of Zosimo's own psychic powers but because of their combined abilities allowing them to do things like alter luck in their favor and pull off uncanny maneuvers.