Beginning his acting career in the role of Young Drusus, Ewan Horrocks starred in multiple episodes of the historical drama “Domina” (2021–2023). He went on to star as Elfweard in the Netflix series “The Last Kingdom” (2022) and reprised the role for the movie “The Last Kingdom: Seven Kings Must Die” (2023). He took the role of Richard Price in the Italian series “Miss Fallaci” (2025) and made his feature film debut with the movie “Truth & Treason” (2025) starring in the main role as Helmuth Hübener.