Manny the mammoth, Sid the loquacious sloth, and Diego the sabre-toothed tiger go on a comical quest to return a human baby back to his father, across a world on the brink of an ice age.
Manny (voice)
Ray Romano
Sid (voice)
John Leguizamo
Diego (voice)
Denis Leary
Soto (voice)
Goran Višnjić
Zeke (voice)
Jack Black
Carl (voice)
Cedric the Entertainer
Frank / Start (voice)
Stephen Root
Oscar (voice)
Diedrich Bader
Lenny / Freaky Mammal / Dab (voice)
Alan Tudyk
Jennifer (voice)
Lorri Bagley
Rachel (voice)
Jane Krakowski
Dodo / Freaky Mammal (voice)
Peter Ackerman
Dodo (voice)
P.J. Benjamin
Dodo / Aardvark (voice)
Josh Hamilton
Glyptodon (voice)
Denny Dillon
Glyptodon (voice)
Mitzi McCall
Baby Start (voice)
Tara Strong
Dodo / Scrat (voice)
Chris Wedge
Sylvia (voice) (uncredited)
Kristen Johnston
Additional Voices (voice) (uncredited)
Darin De Paul
Dodo (voice) (uncredited)
Dann Fink
Various Mammals (uncredited)
Patrick Pinney
Various Mammals (uncredited)
Phil Proctor