Diamondhead is a Petrosapien – a crystalline alien with diamond-hard skin that is able to refract light. When Ben is Diamondhead, he can also fire off crystal shards from his body.
Find out more about Ben 10 Destroy All Aliens characters. With the help of his cousin Gwen, his granpa Max and his alien buddy Tetrax ten-year-old Ben Tennyson is now fighting against Mechamorph Warrior. Check out their character profiles on the Cartoon Network official show page for Ben 10 Destroy All Aliens.