Toon Zone indicates that John Ritter’s final performance as the voice of “Clifford: The Big Red Dog” will be heard in theaters next month, in Clifford’s Really Big Movie, the popular children’s story’s first full-length film. Also, PBS will air a Valentine’s Day Clifford special, in which John Ritter’s voice will also be heard, on Feb. 13.
John Ritter's Final Performance As "Clifford" To Hit Theaters