Originally Posted by scifiwolf
I don't think Vanko being anywhere near Winter Soldier makes sense. Besides, it would mean recasting as I don't think Mickey would come within 100 miles of Marvel ever again after his role got butchered. Natasha makes absolute sense, as she and Bucky would have likely moved in the same circles of government and espionage. But keep Vanko out of it.
The Vanko is question would be Anton, Ivan's father and Howard Stark's erstwhile business partner.