Clifford the Big Red Dog is a reboot to the book series of the same name written by Norman Bridwell. It is the third series in the franchise after the prequel spin-off Clifford's Puppy Days. Clifford is voiced by Adam Sanders, replacing John Ritter in the role since the latter's death in 2003. It was released on December 6, 2019, on Amazon Prime Video, and premiered a day later on PBS Kids.