Elijah Wood
Mumble (voice)
Robin Williams
Ramon / Lovelace (voice)
Elizabeth Daily
Erik (voice)
Johnny A. Sanchez
Lombardo (voice)
Lombardo Boyar
Raul (voice)
Sofía Vergara
Carmen (voice)
Carlos Alazraqui
Nestor (voice)
Jeffrey Garcia
Rinaldo (voice)
Benjamin Flores Jr.
Atticus (voice)
Magda Szubanski
Miss Viola (voice)
Hank Azaria
Mighty Sven (voice)
Richard Carter
Bryan (voice)
Lee Perry
Wayne / Francesco / Eggbert / Leopard Seal (voice)
Jai Sloper
Weaner Pup (voice)
Oscar Beard
Weaner Pup (voice)
Anthony LaPaglia
Alpha Skua (voice)
Danny Mann
Brokebeak (voice)
Denise Blasor
Adelie Chica (voice)
Roger Narayan
Indian Penguin (voice)
Mason Cotton
Additional Voices (voice)
Joshua Rush
Additional Voice (voice)