Hector the Bulldog is the defender of Tweety, pet of Granny, and enemy of Sylvester. He first appeared in "Bulldog Blues."
Hector will appear in two Tweety Tunes. The first is "My Broken Dog Bones", where Granny adopts him to be Tweety's guard dog from Sylvester. The seccond is called "Raging Bulldog" where Sylvester attempts to kill him off for good, to get to Tweety.