Jim Carrey Mr. Popper
Carla Gugino Amanda
Jeffrey Tambor Mr. Gremmins
Angela Lansbury Mrs. Van Gundy
Clark Gregg Nat Jones
David Krumholtz Kent
Ophelia Lovibond Pippi
Dominic Chianese Reader
Philip Baker Hall Franklin
Mark Waters Director, Executive Producer
Madeline Carroll Janie
Sean Anders Screenplay
Mark Mangini Sound Designer, Sound Supervisor
James Chen Fish & Game Officer
Kelli Barrett Tommy's Mom
James Tupper Rick
Desmin Borges Daryl
Doug Hemphill Sound Re-Recording Mixer
John Morris Screenplay
Jonathan Filley Co-Producer, Unit Production Manager
Joseph D'Onofrio Random Man on Street
Jeff Lima Freddy
Peter Epstein Stunts
Ron Bartlett Sound Re-Recording Mixer
Ann Roth Costume Design
John Davis Producer
Olga Merediz Nanny
Bill Corso Makeup Artist
Betsy Aidem Tavern Hostess
Chris Beetem Young Developer
Maxwell Perry Cotton Billy
Dominic Colón Tito
Angel Caban Fishmonger
G.A. Aguilar Stunt Coordinator, Second Unit Director
Brian T. Delaney Young Tom Popper, Sr. (voice)
Matthew Wolf Antarctic Friend (voice)
Daniel Stewart Sherman Zoo Security Guard
Joel Holland Video Assist Operator
Stephen A. Pope Stunt Coordinator
Charleen Richards-Steeves ADR Mixer
William Charles Mitchell Yates
Blaise Corrigan Stunt Coordinator
Alicia Stevenson Foley Artist
Bruce Green Editor
David Lucarelli ADR Recordist
Andy Koyama Sound Re-Recording Mixer
Donald Flick Foley Editor
Renee Burke Script Supervisor
Christopher T. Welch ADR Supervisor
Frank Ciornei Klaus
J.R. Horne Arnold
Piero Mura Sound Effects Editor
Kathleen Chopin Casting
Charlie Marroquin Key Grip
Charles L. Campbell Old Tom Popper, Sr. (voice)
Aja Frary Stunt Double
Derek Dauchy Executive Producer
Rafael Osorio Marine & Waterfowl Officer
Ron Petagna Sr. Construction Coordinator
Rolfe Kent Original Music Composer
Val Kuklowsky ADR Editor
Dawn Fintor Foley Artist
Elaine Kussack Gremmins's Secretary
Ellen Christiansen Set Decoration
Gary Cergol Graphic Designer
Danny Michael Sound Mixer
Lukasz Jogalla Second Unit Director of Photography
Scott Curtis Foley Mixer
Cynthia Kirchner Pulse Lounge Beautiful Girl (uncredited)
Mike Massimino Cop #1
Chad Sayn Stunts
Linda Fields Hill Associate Producer