His vocal effects are performed by John Sparkes.
He is, however, a generally good friend to Shaun and does his best to keep the whole flock out of trouble.
Despite a tendency to be caught listening to music, he takes his job very seriously, to the point of occasionally letting his power go to his head. He once bought a bike for himself, and later versions prove this bike to be a BMW 365 duplex. He also gives instructions to the flock by blowing a whistle. He communicates, canine-fashion, via barks, growls, and the occasional whimper. Bitzer is the farmer's long-suffering but loyal sheepdog, dressed for work in a blue knit cap, black collar, knitted wristlet, and large official-looking wrist-watch, carrying a clipboard and walking upright or on all fours as needed.His vocal effects are performed by Justin Fletcher. He has a good friendship with Bitzer, though this does not stop him from playing pranks on him at times. As there is no dialogue, like all the sheep he communicates entirely through bleating and often explains his ideas to the flock by drawing diagrams on a blackboard. He is clever, confident, and prone to mischief, but equally adept at getting himself and/or his friends out of it.
A 30-minute short film, Shaun the Sheep: The Farmer's Llamas, was aired in 2015 as a Christmas TV special. A feature-length film, Shaun the Sheep Movie, was released theatrically on 6 February 2015. The series inspired the spin-off Timmy Time, a show aimed at younger viewers that follows Shaun's small cousin. In the United States, a series of Shaun the Sheep shorts aired between commercial breaks on Disney Channel starting on 8 July 2007. The fifth series has 20 episodes and was first aired in the Netherlands from 1 December 2015 to 1 January 2016 and in Australia on ABC Kids from 16 January 2016 to. It consists of 170 seven-minute episodes. The series first aired in the UK on the CBBC channel on 5 March 2007 and has been broadcast in 180 countries. The series focuses on his adventures on a northern English farm as the leader of his flock. The title character is Shaun (a sheep previously featured in the 1995 short film A Close Shave and the Shopper 13 short film from the 2002 Wallace and Gromit's Cracking Contraptions series). Shaun the Sheep is a British stop-motion television series and a spin-off of the Wallace and Gromit franchise. "Life's a Treat" by Mark Thomas and Vic Reeves