Darragh Russell Ennis (born 14 March 1980) is an Irish neuroscientist and quizzer. He is one of the six Chasers on the ITV game show The Chase. He is nicknamed The Menace and alternatively The Dublin Dynamo and The Quiz Assassin. He was a contestant on the show in 2017. In April 2020, Ennis became the first ever contestant in the UK to become a new Chaser. His Chaser debut aired on 19 November 2020.