15 Best TV Villains In The Marvel Cinematic Universe
8. Dottie Underwood
Appears In: Agent Carter
Decades before Natasha Romanoff "graduated" from the Red Room Academy, the training program produced an assassin who used the alias Dottie Underwood. Working with Ivchenko, Underwood had no problem getting her hands dirty, whether it be her murder of Ray Krzeminski, attacking Peggy, turning on Item 17 in a crowded movie theater and helping set off the attack on New York City.
Throughout the season, fans learned just enough about the Russian operative's inescapable upbringing to sympathize with the character while simultaneously rooting against her every step of the way. Her resilience helped her walk away from the season alive, meaning she'll most definitely turn up again when Agent Carter returns in 2016, perhaps as part of the already announced arrival of Madame Masque.