Elijah Wood
Mumble (voice)

Robin Williams
Ramon / Lovelace (voice)

Brittany Murphy
Gloria (voice)

Hugh Jackman
Memphis (voice)

Nicole Kidman
Norma Jean (voice)

Hugo Weaving
Noah (voice)

Anthony LaPaglia
Boss Skua (voice)

E. G. Daily
Baby Mumble (voice)

Magda Szubanski
Miss Viola (voice)

Miriam Margolyes
Mrs. Astrakhan (voice)

Carlos Alazraqui
Nestor (voice)

Lombardo Boyar
Raul (voice)

Jeffrey Garcia
Rinaldo (voice)

Johnny A. Sanchez
Lombardo (voice)

Fat Joe
Seymour (voice)

Alyssa Shafer
Baby Gloria (voice)

Cesar Flores
Baby Seymour (voice)

Danny Mann
Dino (voice)

Michael Cornacchia
Frankie (voice)

Seishirou Katou
Baby Mumble (voice)

Arif S. Kinchen
Skuas (voice)

Steve Irwin
Trev (voice)

Tiriel Mora
Kev (voice)

Lee Perry
Elder / Zoo Penguin (voice)

Alan Shearman
Elder (voice)

Larry Moss
Elder (voice)

Peter Carroll
Elder (voice)

Michelle Arthur
Adélie Chica (voice)

Dee Bradley Baker
Maurice (voice)

Roger Rose
Leopard Seal (voice)

Chrissie Hynde
Michelle (voice)

Richard Carter
Barry (voice)

J. Grant Albrecht
(voice)

Shane Baumel
(voice)

Kwesi Boakye
(voice)

A.J. Buckley
(voice)

Erin Chambers
(voice)

Rickey D'Shon Collins
(voice)

Scotty Cox
(voice)

Olivia DeLaurentis
(voice)

Chris Edgerly
(voice)

Efrain Figueroa
(voice)

Jeff Fischer
(voice)

Spencer Lacey Ganus
Additional Voices (voice)

Khamani Griffin
(voice)

Khadijah Haqq McCray
(voice)

Aldis Hodge
(voice)

Diane Michelle
(voice)

Noreen Reardon
(voice)

Eliana Reyes
(voice)

Mari Weiss
(voice)

Billy 'Sly' Williams
(voice)

Rachel York
(voice)

Warren Coleman
Live Action Cast

Felix Williamson
Live Action Cast

Winston Cooper
Live Action Cast

Henry Nixon
Live Action Cast

Belinda Bromilow
Live Action Cast

Dasi Ruz
Live Action Cast

Helmut Bakaitis
Live Action Cast

Simon Westaway
Live Action Cast

Craig Ricci Shaynak
(voice)

Alan Zitner
Live Action Cast