About an evil witch who wants to destroy the happiness of Ponyland. Voices include Cloris Leachman, Madeline Kahn, Danny DeVito, Tony Randall, Rhea Perlman, Tammy Amerson, Jon Bauman, Alice Playten. Michael Joens directed., About an evil witch who wants to destroy the happiness of Ponyland., This full-length animated children’s adventure focuses on a scheme by an evil witch (Cloris Leachman) and her daughters (Rhea Perlman, Madeline Kahn) to flood Ponyland, forcing the Little Ponies out into the cold. The 1986 film was followed by a Saturday-morning cartoon show.