Daniel Radcliffe is responding to 'Harry Potter' author J.K. Rowling's anti-trans stances, saying her ongoing criticism makes him sad. The 'Harry Potter' author has made headlines in recent years for her social media campaigning against the trans rights movement. Rowling recently wrote on social media, saying she would not forgive those who have supported trans healthcare, including Radcliffe and his 'Harry Potter' co-stars Emma Watson and Rupert Grint.