Eve Polastri from Killing Eve
Despite its subject matter, Killing Eve isn't a drama you can take particularly seriously. It requires believing that a woman might be attracted to a hired assassin after she's murdered her best friend in cold blood, and who then recruits her into MI5 in order to help track another potential killer (she can't just use another agent?)
But once you've turned off your brain and accepted the nature of its dark comedy, the show is riveting. Eve Polastri is an ordinary enough woman, married to a high school teacher and working a desk job at MI5 - until she connects the dots between several high-profile murders and theorizes that a female assassin is the culprit.
Impressed by her tenacity, her boss eventually recruits her for an off-the-books assignment to hunt down the killer: Codename Villanelle.
It's only a matter of time before Eve's obsession with the case and the killer has a detrimental affect on her home life, but at this point she's in too deep to stop. I have not yet finished season two, but it's obvious that Eve is not only attracted to Villanelle, but also her way of life, and is beginning to demonstrate sociopathic tendencies of her own.
Sandra Oh is fantastic, managing to juggle fear, intrigue, attraction and those aforementioned comedic beats as she hangs on desperately to her failing moral compass. To watch this highly intelligent but emotionally messy woman go up against a trained assassin makes for a glorious trainwreck - one that doesn't compromise Eve as a character along the way.