Ben Stiller

Alex (voice)

Chris Rock

Marty / Additional Zebras (voice)

David Schwimmer

Melman (voice)

Jada Pinkett Smith

Gloria (voice)

Sacha Baron Cohen

Julien (voice)

Cedric the Entertainer

Maurice (voice)

Andy Richter

Mort (voice)

Bernie Mac

Zuba (voice)

Alec Baldwin

Makunga (voice)

Sherri Shepherd

Mom (voice)

will.i.am

Moto Moto (voice)

Elisa Gabrielli

Nana (voice)

Tom McGrath

Skipper / Lemur (voice)

Chris Miller

Kowalski (voice)

Christopher Knights

Private (voice)

Conrad Vernon

Mason (voice)

Quinn Dempsey Stiller

Baby Alex (voice)

Declan Swift

Baby Alex (voice)

Fred Tatasciore

Teetsi / Poacher #1 / Elephant (voice)

Eric Darnell

Joe the Witch Doctor / Poacher #2 (voice)

Willow Smith

Baby Glorida (voice)

Thomas Stanley

Baby Marty (voice)

Zachary Gordon

Baby Melman (voice)

Meredith Vieira

Newscaster (voice)

Lesley Stahl

Newscaster (voice)

Al Roker

Newscaster (voice)

David Soren

Lemur (voice)

Phil LaMarr

Guide (voice)

Stephen Kearin

Stephen the Giraffe / Tourist with Video Camera / Rhino (voice)

Dan O'Connor

Tourist with University Shirt / Cape Buffalo (voice)

Edie Mirman

Telephone Recording (voice)

Fergie

Hippo Girlfriend (voice)

Harland Williams

Additional Giraffe (voice)

Danny Jacobs

Tourist with New York T-Shirt (voice)

Bridget Hoffman

Female Tourist (voice)

Terrence Hardy Jr.

Cub (voice)

Conner Rayburn

Little Giraffe (voice)

Holly Dorff

Fish (voice)

David P. Smith

Bobby the Dik Dik (voice)

Lynnanne Zager

Lioness (voice)

Jackie Gonneau

Additional Dik Dik (voice)