Altri personaggi
- The Lorax
Danny DeVitoinglese - Once-ler
Ed Helmsinglese - Ted Wiggins
Zac Efroninglese - Mr. Aloysius O'Hare
Rob Riggleinglese - Audrey
Taylor Swiftinglese - Mrs. Wiggins
Jenny Slateinglese - Grammy Norma
Betty Whiteinglese - Once-ler's Mom
Nasim Pedradinglese - 1st Marketing Guy
Joel Swetowinglese - 2nd Marketing Guy
Michael Beattieinglese - Aunt Grizelda
Elmarie Wendelinglese - 1st Commercial Guy
Dave B. Mitchellinglese - 2nd Commercial Guy
Dempsey Pappioninglese - Brett / Chet
Danny Cookseyinglese - Uncle Ubb
Stephen Tobolowskyinglese - Forest Animals
Chris Renaudinglese - Additional Voices
Mona Marshallinglese - Cy
Fletcher Sheridaninglese