Locke has previously appeared on stage at London’s Donmar Warehouse, and in a Broadway production of Sweeney Todd.
The actor said being a theatre actor “was the thing I wanted more than anything” when growing up.
“I’m from the Isle of Man,” he explained, “and my birthday present every year was a trip to London with my mum to watch a few shows, so it’s very full circle to bring my mum to my press night to my West End debut, it’s going to be very exciting.”
Locke has starred in three seasons of Neflix’s Heartstopper since its launch in 2022. The show followed two teenage boys, Charlie and Nick, who fall for each other at secondary school, and their circle of friends. Locke spoke to BBC News while on set, shooting the film adaptation.
“It’s going great, we’re almost two thirds of the way through shooting now, and everything, touch wood, is going well,” he said.
“We’re having a great time doing it, it’s a really nice closing chapter of the story.”