Originally Posted by The Showstopper
its possible. im positive Red Skull isnt dead, i think he was just transported to another realm. i dont think he would make it in Asgard without somebody noticing him. if he and Loki have met its probably safer to assume it was after Loki was transported away at the end of Thor
I like to think that the Red Skull has spent decades in Jotunheim teaching Frost Giants to goose step.