Joseph William Locke, known as Joe Locke, is a Manx actor. He is known for his lead role as Charlie Spring in the Netflix teen series Heartstopper (2022), for which he received an Emmy nomination for Outstanding Lead Performance at the Children's and Family Emmy Awards. Joseph William Locke grew up in Douglas, Isle of Man. In April 2021, it was announced Locke would star as lead character Charlie Spring in his debut television role in the 2022 Netflix coming-of-age series Heartstopper (2022), an adaptation of the webcomic and graphic novel of the same name by Alice Oseman. He was chosen out of 10,000 other potential actors who were up for the role through an open casting call. While Locke was 17 at the time of the filming, his role has him playing a 14-15 year old student in an English boys' grammar school. In November 2022, it was announced that Locke had been cast in Marvel Studios' WandaVision (2021) spin-off television series Agatha All Along (2024) for Disney+.