What is sids dog in toy story?

Sid's dog in Toy Story is a mutant-type mixed breed with a scary, intimidating appearance. He has patchy fur, a large underbite, and an unpredictable personality. His name is not mentioned in the film, but he is referred to as "Scud" in the credits and merchandise. Scud serves as Sid's loyal companion and, along with Sid, he is portrayed as a tormentor of toys. Scud is shown to be vicious and will attack anything, including Buzz and Woody, who are able to outrun him and barely escape his sharp jaws. In a deleted scene, it is revealed that Scud becomes a devoted pet of Buster, Andy's dog, who becomes the new neighbor of Sid.