Professor Spektacular Olsen Gruben Jr. PhD, MD

Or you can just call him Professor Speks.

Teaches at MIR, Minecraftian Institution of Redstone and got his medical license by going on the staff computers and giving himself one.

In his free time he likes fishing and annoying his neighbors by conducting impractical experiments in his house.

Once created a toaster in minecraft but the next day Notch deleted "it" because it wasn't a 5x5 cm cube.