Keeper Agruss is one of the two main antagonists (alongside Miraj Scintel) of the "The Slaves of Zygerria" arc of Season 4 of Star Wars: The Clone Wars.
He is the slave-driving and cruel keeper of the Zygerrian Labor Processing Hub on Kadavo where Jedi General Obi-Wan Kenobi and Captain Rex were imprisoned under him. Though frightfully sadistic, Agruss is also an obese Zygerrian confined to a hover chair possibly due to old age and/or disability. Despite such limitation, the utter ruthless of his nature and cruelty to his own slaves stood out even among the colony of slavers.