Hollow's species is half creeper, half skeleton, and half human. He is very kind and sweet, but can be violent and manipulative at rare times. He has a younger brother, who is Rowen. Rowen is half lava and half human, and looks mostly like a human. Rowen is mentally ill, and self-harms frequently. Recently, Rowen was executed by the president of L'Manberg, Wilbur Soot. For Rowen's execution, Rowen was handcuffed and thrown into water. Since Rowen was made of lava, water is painful to him.