Jason Isaacs shares how he perfected Timothy Ratliff’s southern accent in @The White Lotus and walks Jimmy through the different types of accents throughout the British Isles! #FallonTonight #TonightShow #JasonIsaacs #TheWhiteLotus #JimmyFallon

Jason Isaacs shares how his iconic Lucius Malfoy look and voice in @Harry Potter came to be. #FallonTonight #TonightShow #JasonIsaacs #LuciusMalfoy #HarryPotter #JimmyFallon

Who could possibly be calling Jason Isaacs before the show? 🐍 @The White Lotus #FallonTonight #TonightShow #JasonIsaacs #TheWhiteLotus #HarryPotter #LuciusMalfoy #JimmyFallon