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 de Sève

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)

George Jacobs

Beaver Dad (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)

James Godwin

Traffic Vulture (voice)