Gillian Anderson joins the show to discuss the second season of the heartfelt and hilariously awkward “Sex Education,” in which Anderson plays Jean Milburn, sex therapist and mom to the show’s young lead Otis, played by Asa Butterfield.Anderson of course occupies an iconic place in the pop culture galaxy, thanks to her portrayal of Agent Dana Scully in “The X-Files,” a role that would pave the way for a new kind of female character on television.Now, Anderson is based in London, and her career choices have taken her from the stage, to film, and television.In this episode, Anderson talks about challenging gender disparity, how motherhood helped her keep her “X-Files” success in perspective, her thoughts on the impact of social media, and how she prepared to step into the shoes of Margaret Thatcher for the fourth season of “The Crown.”