Quinn-Toye attended the Dance School of Scotland at Knightswood Secondary School, and the London Academy of Music and Dramatic Art.
[1] Quinn-Toye was the understudy to Tom Holland in the 2024 West End revival of Romeo & Juliet at the Duke of York's Theatre, and made his theatrical debut in the role of Paris, a romantic interest of Juliet.
[1][2] Quinn-Toye's feature film debut will be in the World War II drama Pressure, which is currently in production.
[3] On October 2, 2024, it was announced that he had been cast in the lead role in the Amazon MGM Studios live-action film adaptation of Voltron, starring alongside Henry Cavill, Sterling K. Brown, and Rita Ora.
[1] Voltron began filming in Australia in the winter of 2024.