Instead of simply opening a new topic, perhaps you should have done some research.
I believe that Satoshi is one person. He's not homer, we have writings that we know for a fact are from him.
We also know that he disappeared when ( I think the CIA ) was possibly going to get in contact with him.
One of his last posts (previous to last) kind of confirms this in my view:
It would have been nice to get this attention in any other context. WikiLeaks has kicked the hornet's nest, and the swarm is headed towards us.
I'm saying him, because I'm 99% sure it's a guy. You can read through all the posts and see if you can make a Judgement.
Satoshi could be a woman. I assume people are male on the internet by default.
I assumed the same of mk4 but the gender on the profile is Female.
I'm sure the picture of the wizard played some role in that though.