คุณปู่โรแลกซ์ มหัศจรรย์ป่าสีรุ้ง

Nasim Pedrad as Once-ler's Mom (voice) Fletcher Sheridan as Cy (voice) Bill Farmer as Additional Voices (voice) Mona Marshall as Additional Voices (voice) Betty White as Grammy Norma (voice) Sherry Lynn as Additional Voices (voice) Debi Derryberry as Additional Voices (voice) Jess Harnell as Additional Voices (voice) Jenny Slate as Mrs. Wiggins (voice) Joel Swetow as 1st Marketing Guy (voice) Elmarie Wendel as Aunt Grizelda (voice) Chris Renaud as Forest Animals (voice) Dempsey Pappion as 2nd Commercial Guy (voice) Rob Riggle as Mr. Aloysius O'Hare (voice) Bob Bergen as Additional Voices (voice) John Cygan as Additional Voices (voice) Laraine Newman as Additional Voices (voice) Jan Rabson as Additional Voices (voice) แซ็ก เอฟรอน as Ted Wiggins (voice) เทย์เลอร์ สวิฟต์ as Audrey (voice) Jack Angel as Additional Voices (voice) Danny Mann as Additional Voices (voice) Claira Nicole Titman as Additional Voices (voice) จิม วอร์ด as Additional Voices (voice) Mickie McGowan as Additional Voices (voice) เดฟ บี. มิทเชลล์ as 1st Commercial Guy (voice) Danny Cooksey as Brett / Chet (voice) Danny DeVito as The Lorax (voice) Ed Helms as Once-ler (voice) Michael Beattie as 2nd Marketing Guy (voice) Stephen Tobolowsky as Uncle Ubb (voice)

Carter Goodrich Character Designer John Powell Original Music Composer, Songs Audrey Geisel Executive Producer Randy Thom Sound Re-Recording Mixer, Supervising Sound Editor, Sound Designer Chris Renaud Director Ken Schretzmann Editor Dennis Leonard Supervising Sound Editor Kyle Balda Co-Director ดร.ซูสส์ Book Julie Minasian Vocals Yarrow Cheney Production Design Cinco Paul Executive Producer, Songs, Screenplay Gary Rizzo Sound Re-Recording Mixer Chris Meledandri Producer Daniel Laurie ADR Supervisor, Dialogue Editor Claire Dodgson Editor Ken Daurio Executive Producer, Screenplay Eric Guillon Character Designer