The Nameless One is a facet of the Eternal Champion.The Planescape setting already features a massive conflict between Law and Chaos (The Blood War), and The Nameless One happens to be a tragic, extremely powerful individual condemned to fight that war for eternity (Or at least, until the Planes die off). The Dungeons & Dragons multiverse could very well be a part of the Multiverse.
The secret to the Nameless One's memory was the invocation of the player.The incarnation that discovered a means by which the Nameless One's memory could be preserved between deaths was Dangerously Genre Savvy, and hit on the critical importance of the player in determining the outcome of tabletop and video games. He arranged it so that Planescape: Torment would be created in our world, but by the time it was released he had died a few more times, leaving us with the playable incarnation. The reason the memory endures is because the player is there to share the memory. However, the incarnation wasn't the only Dangerously Genre Savvy character wandering around; anyone capable of outright killing the Nameless One has, through madness or transcendancy, mastered the blackest art: that of the Game Over.
The Nameless One's name wasn't Adahn.It was Adam.
The Nameless One's name is Torment.Less brilliant, but like a certain other nameless, centuries-old living myth, the Nameless One might be the origin of the word Torment, it having come to mean what it does only through association with his actions.
The Nameless One's original crime was the instigation of the Blood War.A crime so massive and downright evil that the planes seem to be slowly dying of it? The Blood War fits the bill well enough. Far back in a time before even surviving myth, the original incarnation instigated the Blood War for fun, profit or an ideal, and ended up causing a tumult that would endure for millenia, killing thousands by the hour. Therefore his ultimate fate: to fight as a soldier in a war of his own making.
Branches of the Ravel tree include...Chris Avellone has said that Ravel's existence spreads through the planes like the branches of a tree. The other incarnations that appear in Planescape echo her existence in small or large ways. Due to the nature of belief on the planes, these incarnations may not start out resembling Ravel, but they come to resemble her in their lifetimes. Here are some from other planes:
For about five minutes of the Good Ending, the Nameless One was the most powerful being in the multiverse.The Nameless One's last acts before he accepted his ultimate fate were to revive his companions, speak with them one last time, and open portals to send them back to Sigil. For those who might not know what this means, the Nameless One created portals to the city where no portals are created without the permission of the Lady of Pain herself. For the brief span of time between joining with the Transcendent One and his descent into the Blood War, the Nameless One could casually ignore Her Serenity and create changes in her city against her will. If he could do that, it's possible he had the power to undo his own punishment... and chose not to.
The Nameless One is the father of Cyric.How else could a mere human kill a demigod (Bhaal) unless he had the blood of an immortal coursing through his veins? Yeah, Godsbane helped, but only so much. Considering that several of TNO's incarnations had had a way with the ladies, it's not hard to imagine TNO from getting one (or several) pregnant.
In life, Morte looked exactly like Joe Pantoliano.Not just because the guy usually plays archetypal traitors and liars, but because of his role in Memento, which, without going into spoilery detail, is broadly similar to Morte's in Planescape. On top of that, they even act and sound similar, with the same outward Deadpan Snarker front.
The Nameless One's sin was creating CoaxmetalBecause I can't think of any worse crime than creating a entity that desires to destroy all universes, and succeeding in many of its attempts. Of course, it has probably forgotten its maker, and now attributes entropy as its creator and commander.
Fell was supposed to be able to join your partyBecause it just makes so much sense. All the other party members have their own contradictions (a chaste Succubus, an enslaved Gith, and so on,) and so the idea of a Dabus who has fallen out of favour with the Lady of Pain fits so well. In addition, there seems to be something missing from Fell's Tattoo parlor. He's a guy who knows you, tattoos play a massive part in the game, he's relevant to your back story. Plus he's interesting. Maybe I'm wrong, but I just get this incredible feeling that, at least in one stage of development, they had Fell down as a potential party member.
The Nameless One's incarnation name for the player character, should the events in the Negative Plane be told from the perspective of the other incarnations, will be The Inquisitive IncarnationIn fact, this aspect of his nature is what allowed him to get so much further than any other incarnation. His power to make people who are about to kill him stop and answer any questions he might have. This is most obviously demonstrated by the demon that accosts you in Curst's underground. He wants to eat you, but he feels compelled to stop and answer your questions first.
The Nameless One is Tharizdun.He isn't chained, he's forgotten who he even is. Explains a lot.
Vhailor is an homage to the Tin Woodsman.He's heartless, he used to be human, and he carries an axe.
The ending is the beginning of the end for the Planes.Think about it: petitioners retain no memories of their former lives, and petitioners sent to fight in the blood war are incarnated as grotesque creatures like Lemures (see the original campaign setting material if you don't believe me.) When the Nameless One wakes up in the Grey Wastes, he's still in his human body, and his remembrance of Ravel's words suggests he still has his memories. This is a Very Bad Thing since the Nameless One now has the memories and abilities of over a thousand lifetimes. Either side of the war he joins will have a serious advantage, and this may even lead to the end of the Blood War. The campaign setting material makes it very clear that the Blood War is the only thing keeping the Demons and Devil's from attacking other plains. Therefore the Nameless One's reclamation of his mortality ended up dooming all of reality!
the punishment at the end is entirely voluntary on The Nameless One's part.OK, this may not seem like much, but upon arriving in the hellish Planes, he picks up a weapon, nods and goes into battle. Sure, it could be a "yeah, that's a neat weapon" nod, or a "OK, let's go kick some ass" nod, but in a story where many little details seem to have real significance, this little gesture suggests that he's making a decision. So he has a choice. Then, just perhaps, The Nameless One has kept his incredible power but, after remembering his past lives, accepts that he has to redeem himself. Note that - as mentioned above - he keeps his human body, that there is a "what can change the nature of man?" voiceover, and that he didn't seem to die before undergoing his belated punishment - it looks like he was pulled bodily into another plane. Hence he probably didn't forget things. And knowledge, like belief, seems to be a very important thing in the Planes. And lastly, but very importantly - why would the Nameless One lose his incredible power? There is nothing that indicates he did.
Planescape: Torment is a sequel of Baldur's GateThe Nameless One is the Child of Bhaal if he were a Human male, followed the evil path and chose to remain a mere mortal being. After some times, he began to regret his deeds, and found a way to become immortal, so he would have the time to fix his numerous mistakes. It went horribly wrong...
The Nameless One is the DoctorRead the full story here.
The Nameless One is Perrine, founder of the GodsmenBecause it would be just like this game if the founder of the Godsmen started that faction based on nothing more than the desperate hope that even someone like him could escape damnation and attain divinity.
Alternatively, The Nameless One founded every faction, or at least every faction he can join during the gameWhen he saw how the conflict between his factions, each of which was founded with the best intentions, was tearing the planes apart, the Good Incarnation repented of what he had done, and realized that he might need several lifetimes to make up for it. This would also explain why he feels no disconnect in joining any or all of them in a single playthrough.
The Nameless One's great sin was pride.The belief that your sin is so horrible that it, alone of all sins, is unforgivable, is itself the sin of pride. He probably did something genuinely very bad, but was too proud to seek forgiveness. That's what led him to Ravel....
Morte is Bob from The Dresden Files.A perverted skull with only a tenuous grip of common morality?
The Nameless One's real name is Gith.Lemme get the first big problem out of the way. When the Nameless One learns his name, he muses that it's "a simple thing, not at all what he expected," and remarks to the Good Incarnation "That was my name all along? But if I was-" As if he knew the name, had heard it before a number of times, but had thought it impossible to be his. Because it belonged to someone supposedly of the opposite gender, for example. History got mixed up a little somehow. Gith created and led a race of xenocidal, slaving sociopaths - more than enough to condemn someone to the Blood War. The last thing Gith did before dropping off the radar forever was descending into the lower planes - officially to gather allies, but actually to seek Ravel's aid in attaining immortality. Why would he tell the truth to a race her regretted creating? And every Githyanki in all the planes knows instinctively that, somehow, Gith lives, but is lost to them.
Yemeth was the Nameless One's first incarnation, or at least a very early incarnation.Although the content was dummied out for the most part in the released game, Yemeth was canonically an incredibly powerful wizard who created a pendant that supposedly made the wearer immortal by consuming souls. Now, does this sound at all like how the Nameless One's present form of immortality functions? Furthermore, the name is brought up in relation to the Nameless One twice; once in the Tomb of Death that the Paranoid Incarnation created, a second time when speaking to the Pillar of Skulls. In both occasions, the name is brought as the last of a list of appellations or titles referring to the Nameless One's past. This suggests that Yemeth was, if not the very first incarnation of the Nameless One, than one of the first.
The Nameless One is the admiral responsible for the destruction of an entire world recorded in the Sensate Stones.Think about it. First, the First Incarnation is said to have felt a tremendous amount of regret, which led him to seek immortality. Now, the stone that shows this memory is described as the one the Sensates use to feel regret. Next, we are talking about a crime (the destruction of a world) that seems more adapted to a sci-fi setting than to the Planescape one. It makes sense, however, if you imagine that the destruction of an entire world in a Multiverse where real, material worlds are ... well, now there is only one, would definitely uspet the balance between Good and Evil, causing the decay of the Planes that the First Incarnation feel responsible first. That theory also explains how the Nameless One could recognize his name when he finally finds it (although it doesn't explain the rest about how it is a simple thing, I admit). Anyway, it's only a theory.
The First Incarnation was responsible for the death of the first DespairDespair's killer was described as taking the rest of eternity to die, and this seems to be The Nameless One's fate until he's able to break it, the end result of which is being condemned to the Blood War regardless. Killing an aspect of one of the Endless would likely be a monumental enough crime to fit the one described in the game. In terms of world-building, tone and theme, the universes of Planescape and The Sandman would mesh well.