Originally Posted by Chris B
Personally, I've always thought the prospect of Radioactive Man appearing in IM3 as being pretty random. Especially considering that the that there are already four villains appearing.
I'm betting on "pale green bad guy with veins" being an Extremis-ized Coldbold.
I don't think it's that random though. Radioactive Man was Mandarin's lackey in Iron Man #179-181. Sure, it was Rhodey in the armour at that time, but still.