Daniel Radcliffe declared his love for his girlfriend Erin Darke and their young son as he won his first ever Tony Award. The 34-year-old ‘Harry Potter’ star and his partner welcomed their first child together in April 2023 and he told the audience at the Lincoln Center’s David H. Koch Theater in New York they are the “the best thing that has ever happened to me” as he picked up the award for Best Performance by a Featured Actor in a Musical for his turn in ‘Merrily We Roll Along’. He started his speech by thanking his parents, saying: “My mum and dad are here somewhere – happy Father’s Day, d…