Kate Middleton and Prince William reportedly gifted their three children with a “magical” trip to the set of the new “Harry Potter” series on Friday. The project will star actor Dominic McLaughlin as Harry Potter, Alastair Stout as Ronald Weasley and Arabella Stanton as Hermione Granger. 8 Louis reportedly got to hop on the Hogwarts Express. They love it.”8 The forthcoming HBO series stars actor Dominic McLaughlin as Harry Potter. The original movie series, which was released from 2001 to 2011, starred Daniel Radcliffe as Harry Potter, Emma Watson as Hermione Granger and Rupert Grint as Ronald Weasley.