The actor said he wrote wishing 11-year-old Dominic McLaughlin ‘an even better time’ growing up in the role than he had

Harry Potter star Daniel Radcliffe said that he wrote to 11-year-old actor Dominic McLaughlin, who has been cast in the title role of the new Harry Potter TV series.

Radcliffe appeared on Good Morning America on Tuesday and said: “I wouldn’t say that anyone who is going to play Harry has to [call me],” adding: “I wrote to Dominic and I sent him a letter and he sent me a very sweet note back.”

McLaughlin’s role in the Harry Potter series was announced in May, alongside that of Arabella Stanton as Hermione Granger and Alastair Stout as Ron Weasley, after an open casting call. Producers HBO had previously said that John Lithgow would play Albus Dumbledore, Paapa Essiedu would be Severus Snape, Janet McTeer would be Minerva McGonagall, and Nick Frost would appear as Rubeus Hagrid.

Radcliffe said: “I do not want to be a spectre in the lives of these children. I just wanted to write to [McLaughlin] to say, ‘I hope you have the best time, and an even better time than I did – I had a great time, but I hope you have an even better time. And I do. I just see these pictures of him and the other kids and I just want to hug them. They just seem so young. I do look at them and say, ‘Oh it’s crazy I was doing that.’ But it’s also incredibly sweet and I hope they’re having a great time.”