Octavia Blake on The 100
Two words: Blood. Reina.
Madison Montgomery on American Horror Story
Madison somehow manages to be prissy, murderous, conniving and hilarious all while maintaining that perfect blonde coiffe. Slay girl.
Wyatt on Westworld
Thing is that Dolores was pretty strong all on her own, but once she made the transition to Wyatt, she became downright terrifying.
Peach Salinger on YOU
Joe may have gotten the best of Peach in the end, but I'll be damned if that woman didn't put up on epic fight beforehand.
Theo on The Haunting of Hill House
With those black gloves and that smirk, Theo can more than hold her own against ghosts, ghouls, and anything else that stands in her way.
Janine on The Handmaid's Tale
After all that Janine has experienced, she has not let it tear her down. If anything, it has made her much more formidable.