Bel Powley, one of the stars of the upcoming “Harry Potter” TV series, spoke out against J.K. Rowling’s controversial transgender beliefs. “I strongly disagree with J.K. Rowling’s views on gender,” Powley told The Telegraph in an interview published Monday. 8 “Harry Potter” TV show star Bel Powley (seen above at London Fashion Week 2025) spoke out against J,K. Rowling’s transgender views. The new “Harry Potter” series will debut on Christmas Day 2026 on HBO and stream on HBO Max.