Didn't the actor that played Malfoy also refuse to disavow JKR? Pretty sure the one that played Voldemort too. Must be a Slitherin thing...
EDIT: A word.
Tom Felton, who played Draco Malfoy, has said:
“First of all, I don’t know enough about the specifics of what anyone said,” Felton said when the subject of Rowling came up. “My dog takes up far too much time for me to go into such matters. I mean, the obvious things to say are that I’m pro-choice, pro-discussion, pro-human rights across the board, and pro-love. And anything that is not those things, I don’t really have much time for.”
“It is also a reminder that as much as Jo is the founder of [these] stories, she wasn’t part of the filmmaking process as much as some people might think,” Felton added, distancing the entire “Harry Potter” film franchise from the controversial author. “I think I only recall seeing her once or twice on set.”
“Honestly, with my friends, we all have differing opinions on various matters, and we celebrate our own choices,” Felton concluded. “We certainly don’t take any pleasure in putting crosshairs on people that may have said things that we disagree with.”
And Ralph Fiennes, who played Voldemort, had said:
In an interview with the New York Times, Fiennes discussed his role as Lord Voldemort in the Harry Potter films and reportedly “bristled” at the controversy surrounding the writer. Fiennes said: “JK Rowling has written these great books about empowerment, about young children finding themselves as human beings. It’s about how you become a better, stronger, more morally centred human being. The verbal abuse directed at her is disgusting, it’s appalling.”
He added: “I mean, I can understand a viewpoint that might be angry at what she says about women. But it’s not some obscene, uber-right-wing fascist. It’s just a woman saying, ‘I’m a woman and I feel I’m a woman and I want to be able to say that I’m a woman.’ And I understand where she’s coming from. Even though I’m not a woman.”