Read any celebrity-signed open letter advocating for social justice over the past few years and you’ll probably spot Juliet Stevenson’s name. When the veteran actor is not gracing screens or on a stage somewhere, she’s out on the streets brandishing a placard or giving speeches about human rights, gender equality and the Palestinian right to self-determination. The Guardian’s journalism is independent. We will earn a commission if you buy something through an affiliate link. Learn more. Just last month, she wrote in the Guardian about the British government’s “complicity” in the Gaza atrocities and what she called an attempt to...