Snowball

Snowball was the pet guinea pig of Missy Cooper, Sheldon's twin sister. 
In "The White Asparagus Triangulation" Sheldon says that when he was 12, he built a CAT scanner and put Snowball inside and as a result, ended up bursting into flame and died.
Category:Cooper Family
Category:Missy
Category:Deceased
Category:Characters
Category:Mentioned-only Characters
Category:Cats