That support of Ms Rowling bucks the trend of fellow Potter actors. The writer, right, has attracted criticism for her views on transgender rights – with stars from the films, including Daniel Radcliffe, Emma Watson and Rupert Grint, voicing opinions.
But Tom, 35, said: “I couldn’t speak for what others have said but I’m often reminded, attending Comic-Cons in particular, that no one has singlehandedly done more for bringing joy to so many different generations and walks of life.”
“I’m constantly reminded of her positive work in that field and as a person. I’ve had only a handful of meetings with her but she has always been lovely. I’m grateful.”
Tom, who made his London West End theatre debut in May in the supernatural thriller 2:22 A Ghost Story, added: “I’m pro. I’m pro-choice. I’m pro-life. I’m prodiscussion.”
“I’m pro-love. I don’t tend to pick sides.”
“I won’t talk specifics but a lot of good friends have ways of life or personal decisions that I don’t necessarily agree with.
“We should enjoy celebrating each other’s differences.”
Tom joined the Potter series as a child and grew up making the eight films over a 10-year period, ending in 2011.
He admitted being attached to the fantasy world had not always been easy and he had been called the “broomstick p****” at school.
But he feels his role as Draco is the “gift that keeps on giving” as it launched his career.