Matt Damon
Benjamin Mee
Scarlett Johansson
Kelly Foster
Thomas Haden Church
Duncan Mee
Colin Ford
Dylan Mee
Maggie Elizabeth Jones
Rosie Mee
Angus Macfadyen
Peter MacCready
Elle Fanning
Lily Miska
Patrick Fugit
Robin Jones
John Michael Higgins
Walter Ferris
Carla Gallo
Rhonda Blair
J.B. Smoove
Mr. Stevens
Stephanie Szostak
Katherine Mee
Michael Panes
Principal
Kym Whitley
Cashier
Todd Stanton
San Diego Vet
Lauren Sánchez
TV Anchor
Peter Riegert
Delbert McGinty
Roberto Montesinos
Hugo Chavez
Desi Lydic
Shea Seger (Lasagna Mom)
Erick Chavarria
Ernesto
Sam Fox
Alison
Dustin Ybarra
Nathan
Ben Seeder
Bruce
Alice Marie Crowe
Parrot Lady
Michelle Panek
Sarah Tanner (Vet Assistant)
Gary D. Robertson
Male Zookeeper
Nicole Russell
Volunteer
Reid Peters
Volunteer
Taylor Victoria
Zoo Patron
Steven Lee
Zoo Patron
Steve Bessette
Zoo Patron
Kate Yerves
Zoo Patron
Hal Alpert
Zoo Patron
Caroline Hanna
Zoo Patron
Leslie Trotter
Zoo Patron
David James Pryce
Zoo Patron
Benjamin Mee
Visiting Family
Ella Mee
Visiting Family
Milo Mee
Visiting Family
Sammi Yorn
Visiting Family
William Crowe
Zoo Kid
Curtis Crowe
Zoo Kid
Johnny Cicco
Zoo Staff
Alexia Barroso
Zoo Staff
Thomas R. Baker
Pilot
David Dustin Kenyon
Pilot
Shannah Barrett
Party Girl
Christie Kittelsen
Zoo Lover
Machelle Glassburn
Zoo Lover
Gabriel Escalante
Segundo
Bart the Bear II
Buster the Bear
Tank
Buster the Bear
Katie
Spar the Tiger
Felix
Solomon the Lion
Ninja
Ronnie the Binturong
Crystal the Monkey
Crystal the Capuchin
Nicole Andrews
Joyce Jameson (uncredited)
Morgan Bertsch
Popcorn Stand Girl (uncredited)
L.J. Benet
(uncredited)