Dennis and Gnasher: The 71th Anniversary Movie

Dennis and Gnasher: The 71th Anniversary Movie is an upcoming American-UK comedy crossover adventure film based on the 1996, 2009 and 2017 television series created by Beano Productions.

Dennis and Gnasher: Unleashed! (2017)

 * Freddie Fox (UK) /Bryce Papenbrook (USA) - Dennis, the main protagonist of the film and the 2017 series
 * Boris Hiestand - Gnasher
 * Ryan Sampson - Peter "Pieface" Shepherd
 * Kathryn Drysdale (UK)/Dorothy Fahn (USA) - Jemima 'JJ' Jones
 * Kelly-Marie Stewart - Rubidium "Rubi" von Screwtop
 * Joanna Ruiz - Mrs Creecher
 * Rasmus Hardiker - Walter Brown, the main antagonist of the film and the 2017 series, Bertie Blenkinsop and Wilbur Brown
 * Maya Sondhi - Miss Mistry

2009 series

 * Sophie