The Grand Inquisitor is the main antagonist of the first season of the television series Star Wars: Rebels. Four years before the theft of the Death Star's plans, The Inquisitor was tasked with the job to seek out and assassinate any remaining Jedi in the galaxy. The one who gave him such a task is none other than the Supreme Imperial Commander Darth Vader, who takes his role of the primary antagonist after he died in battle. He was voiced by Jason Isaacs, who also portrayed Lucius Malfoy, Colonel Tavington, Captain Hook and Sinestro.