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

JB 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

Bart the Bear II

Buster the Bear

Crystal the Monkey

Crystal the Capuchin

Nicole Andrews

Joyce Jameson (uncredited)

Morgan Bertsch

Popcorn Stand Girl (uncredited)