Silvester

Generally always is trying to hunt to the canary Piolin the mascot of the Granny. In later shorts tries to catch the mouse Speedy Gonzales and also has had confrontations with the kangaroo Hippety Hopper (to which confuses with a giant mouse).
Another of its main rivals is the dog Héctor, an enormous bulldog also mascot of the Granny that usually guard to Piolin.