Markus Persson

He is the one who made Minecraft.

Going by the name of Markus Persson (Also known as god or Chuck Norris), he started development on Minecraft around the 10th of May 2009.

-He lives somewhere in Stockhom in Sweden. Notch is 30.

-He enjoys taking long vacations every other week in order to get out of working on Minecraft.

-He is engaged to his fiancé, Elin aka "ez"

-He is SCUBA certified

Known Information
Notch seems to be large and have an awesome beard, this makes him a pure geek.

I’m the large guy with the full beard. http://notch.tumblr.com/post/139018766/illness-update-and-meeting-of-the-minds

It is also known that Notches real name is Markus Alexej Persson and probably lives in Sollentuna/Stockholm in Sweden.

Notch is a wimp
<@Notch> i once lost a fist fight. The other guy wasn't aware of it, though.