Ivan Blakeley Kaye (born 1 July 1961 in Northampton, Northamptonshire) is an English film, television and theatre actor and producer. After playing roles in national productions like Bryan in the comedy series The Green Green Grass, his international fame came with roles in historical drama shows like the Duke of Milan in all three Seasons of The Borgias, and King Aelle in the first four Seasons of History channel's series Vikings. More recent projects include action thriller Gunpowder Milkshake and the series pilot for Amazon's adaptation of Stephen King's The Dark Tower.