This content is copyright of CelebMix.com. Joe Locke, the breakout star of Heartstopper and Marvel's Agatha All Along, is officially heading to London's West End. The 21-year-old actor is set to star in the UK premiere of Clarkston, a moving play by Pulitzer Prize-winning playwright Samuel D. Hunter. Locke will take on the lead role of Jake, a young man diagnosed with Huntington's disease who finds himself in Clarkston, Washington, by accident, after discovering he can no longer drive during a road trip west.