Killing Eve is a British spy thriller television series, produced in the United Kingdom by Sid Gentle Films for BBC America and BBC Three. The series follows Eve Polastri, a British intelligence investigator tasked with capturing psychopathic assassin Villanelle. As the chase progresses, the two develop a mutual obsession. Based on the Villanelle novel series by Luke Jennings, each of the show's series is led by a different female head writer. The first series had Phoebe Waller-Bridge as the head writer, the second series Emerald Fennell, the third series Suzanne Heathcote, and the fourth series Laura Neal.

Jodie Comer is an English actress. Born and raised in Liverpool, Comer began her career in an episode of The Royal Today in 2008. She gained recognition for appearing in the series My Mad Fat Diary and Doctor Foster, and earned acclaim for starring in the drama miniseries Thirteen.