Mark Neveldine and Brian Taylor interviewed with Comic Book Resources a few months ago and told them why Johnny Whitworth will be perfect as Blackout in Ghost Rider 2:
"We needed someone who truly was nuts and dangerous"
omg he's perfect for me...I get called nuts and dangerous all the time! no I'm kidding. It's too late though isn't it, you guys already think I'm a dangerous nutball? how insulting. ♥
Check out the GRSoV article right here at CBR.