He is Gerard's bodyguard and is quick and amazing like Usui. He is considered cute at Maid Latte.
In chapter 53, it was revealed that he despised Misaki and that if she didn't want to get hurt, she should leave Usui/the Walker family alone. Part of his dislike associates with his idea of how butlers and maids are supposed to be like (dedicated servants to distinguished people) and dislikes pseudo-maids as a result, though he understands Misaki's situation over her family. Even so, he feels that someone like Misaki is not suited for someone like Usui.
In Chapter 54, he was taken aback, because he sees the resemblance on how Gerard treats him as Usui treats Misaki. He constantly spies on Misaki and Usui though not very conspicuously as people around Usui and Misaki, as well as Usui and Misaki themselves, can see him.
(Source: Kaichou wa Maid-sama! Wikia)