Stone Boy is a fictional character, a superhero in the DC Universe.Stone Boy was born Dag Wentim on the planet Zwen. All people on the planet Zwen can petrify their bodies. They developed this ability to put themselves into suspended animation for their planet's six-month-long nights. Dag's hair is not affected by the transformation. While Stone Boy is in his petrified form, he cannot move. Through practice and concentration Dag can turn just part of his body into stone, such as his fist.