The Once-ler, a ruined industrialist, tells the tale of his rise to wealth and subsequent fall, as he disregarded the warnings of a wise old forest creature called the Lorax about the environmental destruction caused by his greed.

• DePatie-Freleng Enterprises
• CBS
• Eddie Albert
• Bob Holt
• Athena Lorde
• Harlen Carraher
• Scatman Crothers
• Vivian Vance
• Thurl Ravenscroft