Shaun the Sheep

Shaun: the protagonist of the series and the leader of the flock. He is clever, confident, and prone to mischief, but equally adept at getting himself and/or his friends out of it.
Bitzer: 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.
Shirley: the largest member of the flock. A gentle giant, she is usually seen placidly eating, though she's intimidating enough to have defended Shaun from Pidsley the cat.
Timmy: Shaun's cousin, the flock's only lamb and thus often the innocent centre of the chaos. Timmy often tries to be like Shaun.
Timmy's Mother: Shaun's aunt, wears curlers in her topknot and is a bit careless about maternal duties, even using Timmy once as a makeshift paintbrush.
Nuts: quite an eccentric, but useful sheep and usually, like the rest of the flock, accompanies and helps Shaun. But the thing that makes him stand out from the flock is that he has two different-sized eyes and a different-shaped nose.
Hazel: Hazel's nerves often get the better of her. She's a timid little sheep who jumps at the slightest thing and can frequently be heard bleating nervously.
The Farmer: the owner of Mossy Bottom Farm. He is a tall, thin man with a large nose, glasses, and a brown hat. He is mostly seen driving his tractor or van.
The Farmer's Wife: the farmer's wife. She is a short, plump woman with curly hair. She is mostly seen cooking in the farmhouse kitchen.
Pidsley: the farmer's pet cat. He is a black and white cat with a long tail. He is often seen chasing the sheep or sleeping in the farmhouse.