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)
Crew
Art
Don Foster
Graphic Designer
Angel Esparza
Background Designer
Irv Wyner
Background Designer
Maurice Noble
Production Design
Philip DeGuard
Background Designer
Chuck Jones
Storyboard Artist
Bob Ogle
Storyboard Artist
Editing
Jim Faris
Editor
Sound
Eugene Poddany
Music
