Baron Strucker: A frequent opponent of Nick Fury during World War II, Baron Strucker took over the subversive group HYDRA, and continues to battle Fury and SHIELD with his army, his advanced technology, and his nigh-immortality.

Hydra Elite: The Elite are the ceremonial guards of the subversive organization called HYDRA. Ranking higher than foot soldiers, they are charged with protecting key HYDRA installations as well as high-ranking HYDRA officers.