TMDb/Regular Show Celebrity Regular Show returns! Mordecai & Rigby are back in 'The Lost Tapes,' premiering May 11, 2026 on Cartoon Network. The park crew's new chapter begins. March 20, 2026 AceShowbiz - In a major announcement for animation fans, Regular Show is officially making its long-awaited return to television. The beloved Cartoon Network series, which concluded its original run in 2017, will come back with a brand-new chapter titled Regular Show: The Lost Tapes.