Griffin Keyes
Kate
Stephanie
Gale
Dave
Venom
Robin
Jurgen
Shane
Nimer
Bernie the Gorilla
Franky
TGIF Waitress
Manny
Bernie the Gorilla (voice)
Donald the Monkey (voice)
Joe the Lion (voice)
Janet the Lioness (voice)
Barry the Elephant (voice)
Bruce the Bear (voice)
Jerome the Bear (voice)
Mollie the Giraffe (voice)
Sebastian the Wolf (voice)
Frog (voice)
Crow (voice)
Ostrich (voice)
TGIF Secretary
Glenn
Pizza Guy
Little Boy at Zoo
Bike Guy
Valet
Acrobat
Rebecca
Car Customer
High Roller
Grandfather
Shana
Salesman
Shane's Mother
Cab Driver
Upscale Restaurant Manager
Zoo Visitor (uncredited)
Donald the Monkey (uncredited)
Jerome the Bear