The Nameless One is the protagonist of the video game Planescape: Torment. He is a unique character who has lost his memory and identity, waking up in a mysterious place called the Mortuary. His journey revolves around uncovering his past and understanding the consequences of his actions throughout his many lives. As an immortal being, The Nameless One has the ability to resurrect after death, which leads to a complex exploration of themes like identity, redemption, and the nature of existence. Throughout the game, he interacts with various characters and factions in the Planescape universe, each influencing his quest for self-discovery.