Blathereen family
The Blathereen are a family of criminal Raxacoricofallapatorian. They were in competition with another family, the Slitheen, and had gained an advantage by 2500.
During the events of The Monsters Inside, they had been trying to create a massive warp-hole to move the entire Justicia system. The plan was to warp Justicia into other solar systems. With the compression technology used in their disguises, they planned to use Justicia's sun as a massive flamethrower. They would destroy planets and use the remains as nuclear fuel (using a similar plan as the Slitheen in World War Three, but on a larger scale). The prisoners already in Justicia would be used to process the fuel.
The Blathereen are controlled by Don Arco, an obese Raxacoricofallapatorian. There were enough Blathereen to replace most of the government of Justicia.