The BAFTA-winning actress talks about her path into television and film via the theatre stage. She chats Doc Martin, The IT Crowd, the comradery with actors like Philip Seymour Hoffman and Bill Nighy on Richard Curtis's Pirate Radio, as well her role in The Guernsey Literary and Potato Pie Society, pivotal scenes with Benedict Cumberbatch in Sherlock and recent BBC lockdown comedy Pandemonium.