Yannick

He's an Octoling, still quite confused and a little disoriented by being a part of Inkling culture. He isn't used to it and remembers when they were enemies. However, he seems to be friends with Sienna, she seems to enjoy helping him find his way in the world. He... Appreciates her, maybe he even has feelings for her.
His primary ink colour is a magenta-pink, and his hair colour changes to match his ink colour.