Ray Romano
Manny (voice)
John Leguizamo
Sid (voice)
Denis Leary
Diego (voice)
Queen Latifah
Ellie (voice)
Seann William Scott
Crash (voice)
Josh Peck
Eddie (voice)
Jay Leno
Fast Tony (voice)
Will Arnett
Lone Gunslinger Vulture (voice)
Chris Wedge
Scrat (voice)
Peter Ackerman
Dung Beetle Dad (voice)
Caitlin Rose Anderson
Glypto Boy Billy / Beaver Girl (voice)
Connor Anderson
Rhino Boy / Beaver Boy (voice)
Joseph Bologna
Mr. Start (voice)
Jack Crocicchia
Elk Boy (voice)
Peter DeSève
Condor Chick (voice)
Ariel Winter
Additional Voices (voice)
Clea Lewis
Female Mini Sloth (voice)
Stephen Root
Aardvark Dad (voice)
Nicole DeFelice
Start Girl (voice)
Debi Derryberry
Diatryma Mom (voice)
Marshall Efron
Start Dad (voice)
Tom Fahn
Stu / Male Ox (voice)
Jason Fricchione
Molehog Grandpa / Shovelmouth Male (voice)
James Edmund Godwin
Traffic Vulture (voice)
Brian Scott McFadden
Glyptodon (voice)
Jansen Panettiere
Shovelmouth Boy (voice)
Gregory Romano
Start Boy 1 (voice)
Matt Romano
Start Boy 2 (voice)
Carlos Saldanha
Dodo (voice)
Manoela Scarpa Saldanha
Molehog Kid 1 (voice)
Sofia Scarpa Saldanha
Molehog Kid 2 (voice)
Reyna Shaskan
Diego's Bird Girl (voice)
James Sie
Freaky Male (voice)
Cindy Slattery
Aardvark Mom (voice)
Mindy Sterling
Female Ox (voice)
Renée Taylor
Mrs. Start (voice)
Alan Tudyk
Cholly (voice)
Claudia Besso
Additional Voices (voice)
Madeleine Martin
Additional Voices (voice)
Sherry Lynn
Additional Voices (voice)
Mickie McGowan
Additional Voices (voice)
Emily Anderson
Additional Voices (voice)
Jack Angel
Additional Voices (voice)
Shane Baumel
Additional Voices (voice)
Bob Bergen
Additional Voices (voice)
Kyle J. Bogert
Additional Voices (voice)
Rodger Bumpass
Additional Voices (voice)
Paul Butcher
Additional Voices (voice)
Blanca Camacho
Additional Voices (voice)
John Cygan
Additional Voices (voice)
Jennifer Darling
Additional Voices (voice)
Olivia DeLaurentis
Additional Voices (voice)
Harrison Fahn
Additional Voices (voice)
Bill Farmer
Additional Voices (voice)
Crispin Freeman
Additional Voices (voice)
Tim Kirkpatrick
Additional Voices (voice)
David H. Kramer
Additional Voices (voice)
Danny Mann
Additional Voices (voice)
Laura Marano
Additional Voices (voice)
Matt McCarthy
Additional Voices (voice)
Laraine Newman
Additional Voices (voice)
Jan Rabson
Additional Voices (voice)
Zack Shada
Additional Voices (voice)
Thomas Sharkey
Additional Voices (voice)
Ross Simanteris
Additional Voices (voice)
Rachel Stand
Additional Voices (voice)
Spencer Lacey Ganus
Additional Voices (voice)
Jess Harnell
Additional Voices (voice)
Alex Sullivan
James (voice)