Plot
In this story, Horton discovers there is a microscopic community of intelligent beings called the Who's living on a plant that only he can hear. Recognising the dangers they face, he resolves to keep them safe. However, the other animals around him think Horton has gone crazy thinking that there are such beings.
Trailer
Trailer's not available.
Cast
Hans Conried
Narrator / Horton / Dr. H. Hoovey (voice)
June Foray
Jane Kangaroo / Mother Who / Baby Who / Cindy Lou Who (voice)
Chuck Jones
Junior Kangaroo / Various Whos / Quizmo McKwoff / JoJo (voice)
Thurl Ravenscroft
Wickersham Brother (voice) (uncredited)