Usually calm and collected, Serras-Kai detatches himself from those around him. Often times he will go to great lengths to make sure he comes in contact with no one. However, Kai isn't so much the 'quiet' one so much as 'the one that won't start a conversation with you.' Strangely enough, he will also occasionally leave words out of sentances, the most common being "I" "we" and "you." He is seen on numerous occasions with his would-be apprentice, Elliot Raptor.