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)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Cy (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

Additional Voices (voice)

(voice) (uncredited)

(voice) (uncredited)

(voice) (uncredited)

Visual Effects

Acting

Production

Visual Effects

Production

Editing

Sound

Writing

Editing

Editing

Sound

Art

Writing

Directing

Sound

Sound

Sound

Sound

Writing

Production

Sound

Directing

Sound

Writing

Art

Writing

Writing

Lighting

Sound

Sound

Sound