Gillian Anderson takes on the role of Jean Milburn, a sex therapist and mother to the main character, in the coming-of-age comedy-drama series, Sex Education. The show follows a socially awkward teenager named Otis, who teams up with a rebellious classmate to set up an underground sex therapy clinic at their high school. Anderson's portrayal of Jean brings a mix of humor, warmth, and vulnerability to the character, making her a standout in the series.