GILLIAN ANDERSON RELIES on a simple litmus test when she’s considering a new role: She asks herself whether a part of the character lives inside of her already. “I learned in my career to trust that,” she says on the phone from London. “If I didn’t feel that, I was in trouble saying yes. If I did feel that, between the support that I was going to get and a lot of hard work, I’d be able to get there.”
Anderson has gone remarkable places, playing characters far-flung in time, location, and temperament. Beyond lighting up adaptations of novels by Dickens, Tolstoy, Melville, and Wharton, the feminist actor, activist, and author has most recently played a sex therapist on the comic drama Sex Education and riveted us on The Crown…