Red Skull
The Red Skull was assassinated by the mysterious Winter Soldier, under orders from the renegade former Soviet general Aleksander Lukin wanting to possess the new Cosmic Cube the Red Skull had manufactured. When the Red Skull was shot, he attempted to use the Cosmic Cube to switch bodies with Lukin to survive, but as the Cosmic Cube was still weak he only managed to transfer his mind into Lukin's body, so that the two enemies are trapped together, waging a constant war for dominance which the Red Skull seems to be progressively winning. During a plot to lure out Captain America, the Red Skull/Lukin recruited several German skinheads and made them the successors to Master Man. He then had these soldiers, dubbed the "Master Race", launch an attack on London, which was thwarted by Captain America, Spitfire and Union Jack. Then, the Red Skull/Lukin activated a Sleeper, a robot programmed for mass destruction that was presumably created by Doctor Doom. The robot damaged a significant portion of the new London Kronas H.Q., and was ultimately destroyed by Captain America and Bucky. In the aftermath, the Red Skull sent a videotape, announcing to the world his return, followed by Lukin holding a press conference condemning the actions of both the Red Skull and Captain America, and supporting the Superhero Registration Act. Then, in his office, the Red Skull introduced Lukin to his old/new associates Crossbones and Sin.