Casshern is an android—the union of Tetsuya Azuma's consciousness with an invincible body. His body features a number of unique android functions, including superhuman speed, agility and strength, an opening and closing facemask, a golden crescent-shaped solar panel on his forehead and waist-mounted pulsar propellers that can also be used as weapons. In this latest incarnation, he was originally a subordinate of Braiking Boss and the strongest warrior in his robot army; with an advanced cybernetic body and quick reflexes, he can destroy any opponent he comes across. Casshern was ordered by Braiking Boss to assassinate Luna. However, this act triggered a cataclysmic event and he disappeared. Returning hundreds of years later with no memory of who he was, he somehow holds the ability to painfully regenerate from any injury and goes violently berserk when incited. While he travels to discover what has happened, and to redeem himself, he encounters people who have been affected by the cataclysm. He is also confronted by many others who attempt to kill him under the belief that devouring him will save them from ruination. Saddened by the deaths of Lyuze and Ohji, he returns to Luna once more and reminds her that she is salvation to those wishing to find her, and he is death. Before he leaves to wander the world, he warns her that if she and her followers ever forget death, he will return.
Role in Subspace Emmisary