Claudius- School bully, has a allergic reaction (very ill), Martine saves him, and is not a bully anymore.
Ben- Ben is very shy, overprotective of Martine, Ben and Martine are best friends, Ben and Martine get over fights really quick.
Martine- Is the main character Martines parents dies, Martine is afraid of the ocean, Martine lives in Africa with her grandma and went on a school cruise.
Grandma\Gwen Thomas- Martines grandma, lets Martine live with her when her parents died, very overprotective of Martine , Martine and her grandma get in a fight and Martines grandma sends her on the school trip cruise even though Martine dose not want to go on the cruise.
Grace- gives Martine the survival kit to save claudius, one of Martines best friends,
Jemmy- Martines bestfriend, a special rare white giraffe, Martine has a special human and animal bound with Jemmy.