Barry Keoghan (born 18 October 1992) is an Irish actor. He has appeared in the films Dunkirk; The Killing of a Sacred Deer, for which he won an Irish Film and Television Award for Best Supporting Actor and was nominated for the Independent Spirit Award for Best Supporting Male; and Calm with Horses, for which he was nominated for the BAFTA Award for Best Actor in a Supporting Role, and the RTÉ drama Love/Hate. He also played Druig in Eternals and the Joker in The Batman.
In the story, Batman, Batgirl and Red Hood follow a lead on the Joker, who appears to have been three different men all along. Batman discovers that there are three Jokers: the Criminal, the Clown, and the Comedian.