Underdog is a cartoon dog. He begins with the letter U.
Asterix, I think. Also, Astro the dog on the Jetsons
pochacco
catdog is a example of a cartoon that starts with letter c
Usually in cartoons, a dog would bury their cartoon bone. An example of this would be Dino in the cartoon The Flintstones. Also, a dog may eat their bone in a cartoon.
Asterix
Alvin
Alvin and the chipmonks.
aly
Tarzan
Archie
They all do.
odie