Dennis & Gnasher: Unleashed! is a British computer-animated television series based on the Dennis the Menace strip from the British comic The Beano created by David Law. The strip first introduced in 1951. It started airing on CBBC on 6 November 2017 and is the third animated adaptation of the strip after Dennis and Gnasher and Dennis the Menace and Gnasher. The series stars Freddie Fox as Dennis. A second series began on 13 July 2020.