Marvel Cinematic Universe: 10 Best Villains Of 2018 So Far
6. Sinara
Appeared in: Agents of S.H.I.E.L.D.
Kasius may have been the true face of evil in the future of 2091 that the team spent time in during the first stretch of the season, but it was Sinara, his right hand, that proved to be the real scene-stealer, armed with two floating orbs with which she'd kill people, superior fighting skills if she wanted to get her hands dirty, and an ice cold personality, lacking empathy for anyone around her.
She spoke very little, and yet her loyalty as a warrior to someone who was anything but one spoke volumes to the importance of her bond to Kasius regardless of his social standing with their fellow Kree, especially when Kasius killed his own brother to prove to her that she was one of the few important things in his life.
Every moment she was on screen was tense, effective because her lack of words left her with an air of unpredictability, and her devotion to seeing through Kasius' orders without hesitation made the threat of her mere physical presence palpable. Her final zero gravity fight with Daisy on the Zephyr One was a highlight of the season, with her death a satisfying moment that sent ripples into the narrative, leading to Kasius' fateful meltdown.