
Snowbell is the Littles' pet Persian Cat and the deuteragonist of the films (though initially an antagonist in the book). After Snowbell's Heel–Face Turn, he and Stuart basically become best friends, even with Snowbell's constant snarking and complaining.

Nice Mice: You'll never find a mouse protagonist nicer and friendlier than Stuart.Nice Guy: He's generally a very nice protagonist.In general Stuart tends to get along with all animals when they are not trying to eat him. Interspecies Friendship: His friendships with Snowbell the Cat and Margalo the Bird.Interspecies Adoption: In the films he is adopted by the human family (since his original mice parents were killed in an accident).

For a small anthropomorphic mouse he sure knows how to skateboard.

In the films he is an actual mouse who ends up adopted by the Little family. He's just presumed to be a human who looks exactly like a mouse. He is the biological son of two normal humans and it's never referred to as any sort of fictional disorder. Adaptation Species Change: It's never explained why Stuart looks like a mouse in Stuart Little.

Little, brother of George and Martha Little and "owner" (though more of a friend) of Snowbell the Cat. He is adopted by the Littles, a human family and becomes the son of Mr. He is a small, anthropomorphic white mouse who has grand adventures in New York City. Stuart Little is the titular protagonist of the novel and films of the same name.
