Kevin James
Role: Griffin Keyes
Leslie Bibb
Role: Stephanie
Steffiana De La Cruz
Role: Robin
Thomas Gottschalk
Role: Jurgen
Donnie Wahlberg
Role: Shane
Brandon Keener
Role: Nimer
Tom Woodruff Jr.
Role: Bernie the Gorilla
Jackie Sandler
Role: TGIF Waitress
Nicholas Turturro
Role: Manny
Nick Nolte
Role: Bernie the Gorilla (voice)
Adam Sandler
Role: Donald the Monkey (voice)
Sylvester Stallone
Role: Joe the Lion (voice)
Cher
Role: Janet the Lioness (voice)
Judd Apatow
Role: Barry the Elephant (voice)
Faizon Love
Role: Bruce the Bear (voice)
Jon Favreau
Role: Jerome the Bear (voice)
Maya Rudolph
Role: Mollie the Giraffe (voice)
Bas Rutten
Role: Sebastian the Wolf (voice)
Don Rickles
Role: Frog (voice)
Jim Breuer
Role: Crow (voice)
Richie Minervini
Role: Ostrich (voice)
Katrina Begin
Role: TGIF Secretary
Matthew R. Staley
Role: Glenn
Gary Valentine
Role: Pizza Guy
Tanner Blaze
Role: Little Boy at Zoo
Etienne Deneault
Role: Acrobat
Michael Burton
Role: Car Customer
Todd Zeile
Role: High Roller
Mookie Barker
Role: Grandfather
Tara Giordano-Dean
Role: Shana
Daniel Guire
Role: Salesman
Mark DellaGrotte
Role: Salesman
Ellen Colton
Role: Shane's Mother
Barry Bernardi
Role: Cab Driver
Juston McKinney
Role: Upscale Restaurant Manager
Garon Michael
Role: Bernie the Gorilla
Dan Marshall
Role: Zoo Visitor (uncredited)
Crystal the Monkey
Role: Donald the Monkey (uncredited)
Bart the Bear II
Role: Jerome the Bear
Diana Afonso
Role: Fashion Show Attendant (uncredited)
Charlie Alejandro
Role: Wealthy Zoo Patron (uncredited)
Honey Bump Bear
Role: Bruce the Bear (uncredited)
Joseph Bianchi-Coppola
Role: Wedding Guest (uncredited)
Brina
Role: Party Guest (uncredited)
Mike Burton
Role: Car Customer (uncredited)
Ashley Cerrone
Role: Wedding Guest (uncredited)
Jesse Christensen
Role: Waiter (uncredited)
Billy Concha
Role: TGIF Patron (uncredited)
Danny Connelly
Role: Zookeeper (uncredited)
Christopher J. Davis
Role: Bar Fly(uncredited)
Becki Dennis
Role: Zoo-worker (uncredited)
Simba Dibinga
Role: Simba the Zookeeper (uncredited)
Felix
Role: Joe the Lion (uncredited)
Keith Fluker
Role: Model (uncredited)
Shawn Fogarty
Role: Man in Traffic on Zacum Bridge (uncredited)
John Franchi
Role: Construction Architect (uncredited)
J. Gulinello
Role: Waiter (uncredited)