David Schwimmer Melman (voice)
Cedric the Entertainer Maurice (voice)
Ben Stiller Alex (voice)
Hans Zimmer Original Music Composer
Jada Pinkett Smith Gloria (voice)
Tom McGrath Skipper / Fossa / Panicky Man on Subway (voice), Director, Writer
Andy Richter Mort (voice)
Bruce Fowler Orchestrator
Chris Rock Marty (voice)
Cody Cameron Willie (voice)
Emile Ghorayeb Animation
Robert Renga Sound Recordist
Elisa Gabrielli Old Lady (voice)
Andy Sisul Assistant Sound Editor
Christopher Knights Private (voice), First Assistant Editor
Conrad Vernon Mason (voice), Creative Consultant
Walt Dohrn Story Artist
Bill Díaz Animation
Paul Clarvis Musician
Sacha Baron Cohen Julien (voice)
Edwin R. Leonard Thanks
Nicholas Bucknall Musician
Wade Wilson Sound Effects Editor
Chris Miller Kowalski (voice)
Wayne Hellinger Post Production Coordinator
Bob Saget Zoo Animal (voice)
Trey Thomas Animation Supervisor
Robert C. Campion Production Accountant
Jeffrey Katzenberg Rico (voice) (uncredited)
Karey Kirkpatrick Creative Consultant
Tom Holkenborg Additional Music
Mireille Soria Producer
Anna Behlmer Sound Re-Recording Mixer
Maryann Garger Production Manager
Charlie Ramos Modeling
Mark Burton Writer
Heitor Pereira Additional Music, Musician
Troy Porter ADR Mixer
Rachel Bolt Musician
Eric Darnell Zoo Announcer / Lemur #1 / Fossa / Subway Car Announcer (voice), Director, Writer
Andy Nelson Sound Re-Recording Mixer
Craig Kellman Lead Character Designer
David A. Whittaker Sound Effects Editor
Devika Parikh News Reporter (voice)
Christi Soper Hilt Casting Associate
Craig Paulsen First Assistant Editor
Mo Henry Negative Cutter
Richard L. Anderson Supervising Sound Editor
Jim Dooley Additional Music
James S. Levine Additional Music
James Baxter Animation Supervisor
James Hull Animation
David P. Smith Spider / Lemur #2 (voice)
Dan O'Connell Foley
Ryan Harris Production Supervisor
Chris Douridas Music Consultant
Leslee Feldman Casting
James Ashwill Foley Mixer
Bill Damaschke Thanks
Gavin Greenaway Conductor
Stephen Apostolina Police Officer (voice)
Steve Mair Musician
Ted Tally Creative Consultant
Mark Berrow Musician
Bruce White Musician
Anna Noakes Musician
Van Phan Animation
John T. Cucci Foley Artist
Lou Dellarosa Animation
David Cowgill Police Horse (voice)
Jonathan Williams Musician
Alan Meyerson Additional Sound Re-Recording Mixer