HBO’s Harry Potter Series Adds Cornelius Fudge and the Dursleys to Its Growing Cast The much-anticipated Harry Potter reboot from HBO is steadily expanding its magical roster, with recent casting announcements adding to the excitement of fans worldwide. Among the newest names joining the spellbinding ensemble are seasoned British actors Bertie Carvel, Bel Powley, and Daniel Rigby. They will portray Cornelius Fudge and the notorious Dursley couple—Petunia and Vernon—in the upcoming television adaptation. As Warner Bros. Discovery and HBO commit to reimagining J.K. Rowling’s legendary Harry Potter book series for a modern television audience, casting updates have become a major source of speculation and buzz.