Originally Posted by C_Carmichael
2. Baron Zemo - This is a must. He is Cap's ultimate foe, he must at the very least be introduced. IM3 is bringing Mandarin, Thor got his Loki and Hulk got plenty of General Ross. It's time for Cap to get his biggest enemy.
I want Zemo too...but he's unquestionably Cap's #2 foe, trailing Red Skull by a good distance.