Searxng/Clifford the Big Red Dog Celebrity Clifford the Big Red Dog is back! The beloved 2000s animated series, featuring John Ritter, returns with a reboot on PBS Kids in 2027. May 7, 2026 AceShowbiz - The beloved 2000s fantasy animated series Clifford the Big Red Dog, which featured the voice of John Ritter, is officially returning with a reboot slated for 2027. The announcement was confirmed by industry sources including The Hollywood Reporter, highlighting the renewed effort to bring this cherished children's show back to PBS Kids.