The Greasers are a trio of street gang consisting named Cliff, Shriek and Lube. They are the main antagonists of the Nickelodeon animated series CatDog. They act like school playground bullies, picking on anyone either weaker or different than them. They pick on and beat up CatDog. Dog sometimes gets along with them because he's a canine, as well. They initiated him in the gang, after he had proven his worth as a real dog. Three members are tough, loyal to the pack, and are proud to be dogs. Eddie the Squirrel wants to be a greaser dog, but isn't accepted by the group.