Alex the Lion
Ben Stiller
Marty the Zebra
Chris Rock
Melman the Giraffe
David Schwimmer
Gloria the Hippo
Jada Pinkett Smith
Julian
Sacha Baron Cohen
Maurice
Cedric the Entertainer
Mort
Andy Richter
Skipper/Fossa/Panicky Man on Subway
Tom McGrath
Private (voice)
Christopher Knights
Kowalski (voice)
Chris Miller
Mason (voice)
Conrad Vernon
Zoo Announcer / Lemur #1 / Fossa
Eric Darnell
Police Horse (voice)
David Cowgill
Old Lady (voice)
Elisa Gabrielli
Police Officer (voice)
Stephen Apostolina
News Reporter (voice)
Devika Parikh
Spider / Lemur #2 (voice)
David P. Smith
Willie (voice)
Cody Cameron
Zoo Animal (voice)
Bob Saget
Rico
John DiMaggio