TMDb/Regular Show: The Lost Ta Celebrity Regular Show: The Lost Tapes revives Mordecai & Rigby's park misadventures! Premieres May 11th on Cartoon Network. New spin-off, classic chaos. April 5, 2026 AceShowbiz - Regular Show is returning with a fresh spin-off titled Regular Show: The Lost Tapes, which is poised to become one of Cartoon Network's most eagerly awaited sequels. This new series arrives nearly ten years after the original show concluded, aiming to take audiences back to the era when Mordecai and Rigby were still working at the park under Benson, the gumball-headed manager.