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Top Cast
Ray Romano
Manny (voice)
John Leguizamo
Sid (voice)
Denis Leary
Diego (voice)
Goran Višnjić
Soto (voice)
Jack Black
Zeke (voice)
Cedric the Entertainer
Carl (voice)
Stephen Root
Frank / Start (voice)
Diedrich Bader
Oscar (voice)
Alan Tudyk
Lenny / Freaky Mammal / Dab (voice)
Lorri Bagley
Jennifer (voice)
Jane Krakowski
Rachel (voice)
Peter Ackerman
Dodo / Freaky Mammal (voice)
P.J. Benjamin
Dodo (voice)
Josh Hamilton
Dodo / Aardvark (voice)
Denny Dillon
Glyptodon (voice)
Mitzi McCall
Glyptodon (voice)
Tara Strong
Baby Start (voice)
Chris Wedge
Dodo / Scrat (voice)
Kristen Johnston
Sylvia (voice) (uncredited)
Darin De Paul
Additional Voices (voice) (uncredited)
Dann Fink
Dodo (voice) (uncredited)
Patrick Pinney
Various Mammals (uncredited)
Phil Proctor
Various Mammals (uncredited)