Who is this green guy?

I just recently acquired a green/blue prisoner. I have never seen one before, so I don't know what to do.

Is he one of those 'convicted guards/staff members' or something? Do I need to put him in a special cell?

Any help or advice will be appreciated.

EDIT: Here's another one:

Solution 1:

That is one of the developers of the game. He is just a normal prisoner and can be treated in the exact same way as all the others.

As an additional note, occasionally the developers have been known to change some prisoner skins as a joke, so if you see someone like this just treat them as normal.