Ann Dowd: ‘I haven’t been hired for my looks, so I’ve never depended upon them’

The New Yorker played the formidable Aunt Lydia in ‘The Handmaid’s Tale’ for almost a decade. Now, as she returns in its timely sequel ‘The Testaments’, Dowd talks to Ellie Harrison about how the show reflects modern America, what it’s like turning 70, and why she wants to use her sense of humour more on screen