Moxie

Moxie is the tritagonist of the All Dogs Go to Heaven: The Series episode "All Creatures Great & Dinky". She is an anthropomorphic mother mouse who doesn't like pollution, and she also doesn't like it when her children come into contact with styrofoam because if either eats it, that material, lasting for centuries, will stay in their tummies forever. Because of this, she has them play with a piece of paper instead.

Moxie lives with a family of mice, only one of whom else is named: Maurice (who could be her mate).

Moxie, with the help of shrunken Charlie Barkin and Itchy Itchiford, has to stop Carface and Killer from polluting not only where they live, but everywhere else (as it affects the water the dogs drink), as they intoxicate it with poisonous paint, which they use to make plastic replicas look like antiques.

It is unknown who voiced Moxie.