Harry Collett

Harry Collett (also credited as Harry Leonard J. Collett) is a British screen actor born on January 17, 2004, in Havering, London. Emerging as a standout young performer, he has built a résumé that moves confidently between prestige television, studio films, and character-driven dramas.

Collett gained wide attention for playing Jacaerys Velaryon in HBO’s House of the Dragon (2022), a role that introduced him to a global audience and showcased his ability to handle high-stakes fantasy storytelling. He also made a strong impression in the family adventure Dolittle (2020) as Tommy Stubbins, acting opposite an ensemble cast in a large-scale production.

Earlier, he appeared in Christopher Nolan’s WWII epic Dunkirk (2017) as a boy, adding to his growing list of film credits. His work also includes Dead in a Week (Or Your Money Back), voice acting in Ethel & Ernest, and roles in titles such as Honour, Angels Of Our Past, and Why Wouldn’t I Be?.