He is my baby daddy. He owes me child support! If you see him tell him to come home. 
Nobody knows.
Satoshi Nakamoto is the name found on the original Bitcoin paper: Page on bitcoin.org. It's a male Japanese name but there are no records of his identity prior to the creation of Bitcoin and his interactions with the community faded in 2010 with no communication since. The release of Bitcoin is speculated by some to be a collaborative effort with Nakamoto possibly being the name for a group of people.