Joe Locke set for West End after shooting Heartstopper movie

Locke, who is used to portraying young men grappling with their identity, explained: "I really enjoy characters that have something to them, a bit of bite, a bit of a grey area.

"Everyone is flawed in some ways. And I've been lucky enough in my career so far to play a few flawed characters, and Jake is no different to that. And that's the fun bit, the meaty bit, getting to know these characters - they're good and they're bad."

Hunter noted the play "is fundamentally about friendship and platonic male love, which is something that I feel like we don't see a lot of on stage and screen".

Locke agreed: "Yeah, one of my favourite things about this play is there's a scene where these characters almost build on their platonic relationship and get to a romantic level, and they realise that no, the platonic relationship is what's important, and I think that's really beautiful."

Clarkston, which has previously been performed alongside another of Hunter's plays, Lewiston, received positive reviews from critics when it was staged in the US.

"You feel like you're eavesdropping on intensely private moments of people you don't always like but come to deeply understand," said The Hollywood Reporter's Frank Scheck of a 2018 production.

"Toward the end, there's an encounter between Chris and his mother that is as shattering and gut-wrenching a scene as you'll ever see on stage. But the play ends on a sweet, hopeful note that sends you out of the theatre smiling."

Writing about a different production in 2024, Charles McNulty of the LA Times said: "Clarkston hints that some of our most instructive relationships may be the most transitory. That's one of the beautiful discoveries in Hunter's small, absorbing and ultimately uplifting play."

Anybody who has worked night shifts may relate to the idea that the early hours are a time when people often open up to each other and have have their deepest conversations.

Hunter suggests such an atmosphere results in a "more delicate, more intimate" backdrop.

"I had an experience working in a Walmart when I was a teenager," he recalled, "and I found that places like the break room were so intimate and vulnerable, you're in this very sterilised space so I think the need for human connection is made all the greater."

Hunter had the idea of writing the play when visiting his home town of Moscow Idaho, about 30 miles from Clarkson, and became interested in "the idea that the American West is still kind of young", following the Louisiana Purchase in the early 19th Century.

"The markers of that history are still there," noted Hunter, "but they are right next to things like Costcos and gas stations and mini-malls.

"So it just got me interested in the experiment of the American West and the colonial past, and what that means in 2025."

The new production will be directed by Jack Serio, who has previously directed another of Hunter's plays, Grangeville, with Ruaridh Mollica and Sophie Melville cast in the other two lead roles as Chris and his mother.