The hourlong animated movie that launched the Star Wars Rebels series last week is set to air on ABC at 7 PM October 26 — and it will include an evil visitor with a Darth-Vaderchillingly familiar voice. Darth Vader himself will have a cameo during an added scene in Star Wars Rebels: Spark Of Rebellion. His voice will be supplied by James Earl Jones, whose menacing pipes rattled so many enemies — and colleagues — in the original Star Wars trilogy. “We wanted to do something special for the ABC broadcast,” said series creator and executive producer Dave Filoni said. “We’ve added a scene which gives audiences insight into the Inquisitor and includes a cameo by Darth Vader.” Set between the events of Star Wars Episodes III and IV, the Star Wars Rebels story unfolds during a dark time when the evil Galactic Empire is tightening its grip of power on the galaxy. The series airs at 9 PM Mondays on Disney XD after premiering October 3 on Disney Channel.