I think I figured out the man

He's not the devil. He's one of those superbeings that populate Stephen King's "Dark Tower"-verse that uses his abilities for either good or evil.

No, some of the things he asks people to do are actually beneficial and good. So morally, it goes both ways. I don't think he can be the devil in terms of an evil force. However, he could be the devil if you open it up to a wider interpretation that paints the devil not as evil, but as having an interest in mankind and a willingness to help him without moral judgement; he could also be a fallen angel or some supernatural entity that's more of a trickster spirit.

However, it's interesting to note that "the Man" often seems horrified by what the people ask him for, what they're willing to do, and the details of how they describe their actions. To me, this seems to put him more in a light of someone truly fascinated by mankind, trying to understand them. It's also evident that the Man doesn't have any control over the book or its powers to make people's wishes come true. He's more of an intermediary for this divine force, bearing witness.

There's also the fact that people's wishes often take them down a winding path that may or may not see them complete their task, give up, ask for another task, etc. It's almost a heightened tool of evolution-- someone quickly learning what is is they are or are not capable of, and what they're willing to do. Sometimes this can turn out to have a "happy" ending for the person.

I suppose a case could be made for the man being an autistic with a heightened understanding of reality-- if the producers ever wanted to ground it in reality. Perhaps the man's autism allows him to see many possibilities, and he's able to predict their desired outcome by performing a task; he can see and understand how the dominoes will all fall and result in their desire. In return, he wants details on their emotional process and a deeper understanding of the situation, because that's what he lacks. But... I don't think the producers will go that way with it. The most recent episode two of Season 2 features a woman asking him about how he got the book-- so that does seem to indicate that there is something supernatural at work, and that it's tied to the book. There's also the case of bringing the woman in season one back to life, and his telling her father "That can happen." But whether or not "the Man" is simply a regular man who stole or acquired the book or is something more, is still an unknown.

I don't know if it will ever be revealed. Sometimes it's best to allow viewers to endlessly and openly debate these things, and it keeps the show relevant, rather than offer up a simplified explanation that will disappoint at least some people. But it will be interesting to see how the mythology about the book is explored this season, and just how many details are revealed. But I will again make note of the fact that the book simply seems to refine a person's true nature and put them in a situation where they become more of who they are, and that the man seems curious to learn more about the extent of human nature from the various people he meets, and often seems upset by their desires or actions, as much as he is intrigued by them or enlightened when he learns something new about humanity from them, good or bad. Nevertheless, he can never turn someone down it seems. Just as all they need to do to get what they want is to perform their assigned action. It's all about the book.

But... it is interesting how, in pursuing a task to get what they think they want, they will learn things about themselves, and sometimes trigger something with their actions, that will cause them to realize what it is they really want, or to reassess their values. They may end up getting what they really want, which may be something other than what they asked for and what they thought they wanted, through the serendipity of the happenstance of them pursuing their assigned task.

I was thinking he is neither an angel (good) nor the Devil (bad), but more like Mr. Roarke from "Fantasy Island" ( the tv show, not the idiotic recent movie)

The solution to the mystery surrounding the Man in the booth at the end is quite simple! He is just as human as we are and has no special gifts or whatever. The only difference is that he also came to a man in the booth at the end to get a wish fullfilled and his task is to become and be the new man in the booth at the end untill he finds a new man that takes his roll and his wish will then be granted! The paranormal item is the book that gives the holder special powers as long as it is in his/her possession. The mystery will be where does the book come from??? Probably something like the Akasha Library of the Universe holding all the lives of all the people that have ever exsisted and will ever exsist. BTW the next holder of the book will not be a man but a women! Case closed!

[deleted]

This theory falls flat as he was able to not only raise someone from the dead, but retroactively concocted a reason for how she was "mistaken" for dead, which ended up killing an innocent girl who was at the hospital for a routine checkup.

She was dead, there was no doubt she was dead. She even remembers being dead. She was resurrected. Only a supernatural power can do that.

Fiction is a creation of the mind of the writer. If, as hermetic wisdom suggests, individual minds are aspects of the one divine mind, ergo Nous, even fiction is a creation of the Divine Mind. God has a dream. In his dream, Istlota is a dream character who imagines a work of fiction entitled the booth at the end. But, ultimately, even that work of fiction is from the mind of God, aka Nous.

Is Nous God or devil? Or both, or neither?

He's a time-traveler and scientist. something bad happened in the future, he's balacing the world what it is has to be. there are many ways to do it, so it's not a specific mission. --- just maybe think about it :)