Buster (Lady and the Tramp)

Buster is a character in Disney's Lady and the Tramp II: Scamp's Adventure and serves as the main villain. He is the leader of the Junkyard Dogs and his breed appears to be a Doberman. He is very interested in Angel and calls her "his girl", even though she despises him and repeatedly emphasises this.

Lady and the Tramp II: Scamp's Adventure
He is first seen throwing the dog catcher's hat, later on, when he discovers Scamp he decides that before he can make him a "Junkyard Dog" he'll give him a "test" to show that he's brave enough he is later seen watching Scamp's Family from the bushes, he then tells Scamp that for his "final test" that he wants him to wreck their picnic and steal their chicken Scamp so does he then meets up with Scamp (and Tramp) in a dead end alley where he reveals that he and Tramp were once best friends but when Tramp ran off with Lady he became jealous of her and decided he didn't like house dogs and went on with his life but when Scamp gets trapped while running from the dog catcher he sees Buster and thinks he will rescue him. Buster refuses and leaves ignoring him. When Scamp suddenly discovers that Buster was actually doing all this for revenge, he takes to finally realizing that a family is more than rules. After he escapes the pound Scamp goes back to the junkyard, gets his collar, and traps Buster underneath a pile of junk. And everybody ditches Buster leaving him alone and stranded.

Trivia

 * He and Tramp were once best friends.
 * Ever since Tramp ran off with Lady he has always had a hate for families.
 * He is the first main villain ever to be shunned.