The Lorax (voice)
Once-ler (voice)
Ted Wiggins (voice)
Mr. Aloysius O'Hare (voice)
Audrey (voice)
Mrs. Wiggins (voice)
Grammy Norma (voice)
Once-ler's Mom (voice)
1st Marketing Guy (voice)
2nd Marketing Guy (voice)
Aunt Grizelda (voice)
1st Commercial Guy (voice)
2nd Commercial Guy (voice)
Brett / Chet (voice)
Uncle Ubb (voice)
Forest Animals (voice)
Additional Voices (voice)
Cy (voice)