Clifford's Puppy Days is a short-lived animated children's television series that originally aired on PBS Kids from 15 September 2003 to 13 October 2004. A spin-off of the original Clifford the Big Red Dog, it is set before the original … Lara Jill Miller, Masiela Lusha, Cam Clarke, Grey DeLisle, Henry Winkler, Jess Harnell, Kath Soucie Added on Amazon Prime 2021-11-16.