Death Mask Cancer is a prominent antagonist in the anime and manga series Saint Seiya. As the Gold Saint of Cancer, he is known for his ruthless and sadistic nature, showing little remorse for his actions. Death Mask is infamous for his ability to send the souls of the dead to the Underworld using his powerful techniques. He serves as an obstacle to the protagonists, embodying the darker side of the Gold Saints, and is ultimately confronted by Shiryu in a memorable battle.