 Ben StillerAlex (voice) | Alex (voice) |
 Chris RockMarty (voice) | Marty (voice) |
 David SchwimmerMelman (voice) | Melman (voice) |
 Jada Pinkett SmithGloria (voice) | Gloria (voice) |
 Sacha Baron CohenJulien (voice) | Julien (voice) |
 Cedric the EntertainerMaurice (voice) | Maurice (voice) |
 Andy RichterMort (voice) | Mort (voice) |
 Tom McGrathSkipper / Policeman #1 (voice) | Skipper / Policeman #1 (voice) |
 Frances McDormandChantel DuBois (voice) | Chantel DuBois (voice) |
 Jessica ChastainGia (voice) | Gia (voice) |
 Bryan CranstonVitaly (voice) | Vitaly (voice) |
 Martin ShortStefano (voice) | Stefano (voice) |
 Chris MillerKowalski (voice) | Kowalski (voice) |
 Christopher KnightsPrivate (voice) | Private (voice) |
 Conrad VernonMason / Policeman #2 (voice) | Mason / Policeman #2 (voice) |
 Vinnie JonesFreddie the Dog (voice) | Freddie the Dog (voice) |
| SSteve JonesJonesy the Dog (voice) | Jonesy the Dog (voice) |
| NNick FletcherFrankie the Dog (voice) | Frankie the Dog (voice) |
 Paz VegaHorses (voice) | Horses (voice) |
 Frank WelkerSonya (voice) | Sonya (voice) |
 Danny JacobsCroupier / Circus Master (voice) | Croupier / Circus Master (voice) |
 Dan O'ConnorCasino Security / New York City Mayor (voice) | Casino Security / New York City Mayor (voice) |
 Eric DarnellComandante / Zoo Official / Zoo Announcer (voice) | Comandante / Zoo Official / Zoo Announcer (voice) |
 Stephen KearinPoliceman #4 (voice) | Policeman #4 (voice) |
 Emily NordwindZoo Official (voice) | Zoo Official (voice) |
| AAsucena JimenezKid in Crowd (voice) | Kid in Crowd (voice) |
