He's a notorious supervillain from my own world. A genius, but a depraved psychopath. Anyone who tried to stand in his way, he murdered in cold blood, including two of my closest friends. [Bette counts.]

He has the ability to transfer his consciousness from one body to another, but until your Porter brought me here, he was contained. Now, he's not. I can't say for sure, but there's a significant chance he may have escaped into one of your personnel.