Jack Angel

Additional Voices (voice)

Debi Derryberry

Additional Voices (voice)

Sherry Lynn

Additional Voices (voice)

Mickie McGowan

Additional Voices (voice)

Chris Renaud

Forest Animals (voice)

Nasim Pedrad

Once-ler's Mom (voice)

John Cygan

Additional Voices (voice)

Cinco Paul

Executive Producer

Ken Daurio

Executive Producer

Jenny Slate

Mrs. Wiggins (voice)

Michael Beattie

2nd Marketing Guy (voice)

Bob Bergen

Additional Voices (voice)

Stephen Tobolowsky

Uncle Ubb (voice)

Dave B. Mitchell

1st Commercial Guy (voice)

Ed Helms

Once-ler (voice)

Danny Mann

Additional Voices (voice)

Rob Riggle

Mr. Aloysius O'Hare (voice)

Zac Efron

Ted Wiggins (voice)

Danny DeVito

The Lorax (voice)

Audrey Geisel

Executive Producer

Taylor Swift

Audrey (voice)

Betty White

Grammy Norma (voice)

Joel Swetow

1st Marketing Guy (voice)

Elmarie Wendel

Aunt Grizelda (voice)

Dempsey Pappion

2nd Commercial Guy (voice)

Danny Cooksey

Brett / Chet (voice)

Fletcher Sheridan

Cy (voice)