Joe

Joe is the cousin of Piper McLean. He is also Indian, but is the son of Hades. He lives on heavy metal and horror movies. In his room when he is first introduced on Christmas week at Camp Half Blood, he blasts a magical radio with soundtracks from metal bands Disturbed, Slipknot, Iron Maiden, Slayer, etc., and there is no actual radio, and only Joe can control the volume. During this time, Die Hard 2 is on his TV in his cabin. Piper visits him and they talk about how they haven't seen each other since they were separated.

Joe is 16 years old, but appears about 8 because he was in the Lotus Hotel and Casino for 8 years.