An Irish actor from Adamstown, County Wexford, he gained recognition for his role as Teddy O'Donovan in the critically acclaimed film "The Wind That Shakes the Barley" (2006). He trained at the Dublin-based Trinity College Drama Department. Known for his versatility, he has appeared in various TV series, including "The Tudors" where he played George Boleyn. Delaney's work extends to theater, showcasing his dynamic acting range across multiple platforms.