Kevin James

Griffin Keyes

Rosario Dawson

Kate

Leslie Bibb

Stephanie

Joe Rogan

Gale

Nat Faxon

Dave

Ken Jeong

Venom

Steffiana De La Cruz

Robin

Thomas Gottschalk

Jurgen

Donnie Wahlberg

Shane

Brandon Keener

Nimer

Tom Woodruff Jr.

Bernie the Gorilla

Nick Bakay

Franky

Jackie Sandler

TGIF Waitress

Nicholas Turturro

Manny

Nick Nolte

Bernie the Gorilla (voice)

Adam Sandler

Donald the Monkey (voice)

Sylvester Stallone

Joe the Lion (voice)

Cher

Janet the Lioness (voice)

Judd Apatow

Barry the Elephant (voice)

Faizon Love

Bruce the Bear (voice)

Jon Favreau

Jerome the Bear (voice)

Maya Rudolph

Mollie the Giraffe (voice)

Bas Rutten

Sebastian the Wolf (voice)

Don Rickles

Frog (voice)

Jim Breuer

Crow (voice)

Richie Minervini

Ostrich (voice)

Katrina Begin

TGIF Secretary

Matthew R. Staley

Glenn

Gary Valentine

Pizza Guy

Dan Marshall

Zoo Visitor (uncredited)

Crystal the Monkey

Donald the Monkey (uncredited)

Bart the Bear II

Jerome the Bear