In the Netflix series Sex Education, Gillian Anderson plays the role of Jean Milburn, a sex therapist and the mother of the main character, Otis. The show explores the awkward and humorous experiences of teenagers navigating their way through relationships and sexuality. Anderson's performance as Jean is both hilarious and heartfelt, earning her praise from critics and viewers alike. Sex Education has been praised for its honest and inclusive portrayal of sex and relationships, making it a must-watch series on Netflix.