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)