As his name implies, he is a Christ figure. He even has a slight resemblance to Jesus in his hair color and facial hair style. He is the president of the Bible study club at Franklin Anderson High.
His appearance in Lost? is very brief. He overhears that the New Kid is lost and thinks that means she needs direction in life. He tries to help out by offering her a spot in his club and handing her a copy of the New Testament, but she dismisses him, saying that she is lost in another way.