Jim Carrey Mr. Popper
Carla Gugino Amanda
Angela Lansbury Mrs. Van Gundy
David Krumholtz Kent
Madeline Carroll Janie
Jeffrey Tambor Mr. Gremmins
Clark Gregg Nat Jones
Ophelia Lovibond Pippi
James Tupper Rick
Philip Baker Hall Franklin
Dominic Chianese Reader
Jeff Lima Freddy
Joseph D'Onofrio Random Man on Street
Kelli Barrett Tommy's Mom
Angel Caban Fishmonger
Mark Waters Director, Executive Producer
Daniel Stewart Sherman Zoo Security Guard
Joel Holland Video Assist Operator
Jonathan Filley Co-Producer, Unit Production Manager
William Charles Mitchell Yates
James Chen Fish & Game Officer
Peter Epstein Stunts
Olga Merediz Nanny
Sean Anders Screenplay
Dominic Colón Tito
Ron Petagna Sr. Construction Coordinator
Bill Corso Makeup Artist
Blaise Corrigan Stunt Coordinator
Dylan Clark Marshall Young Tommy Popper #2
Matthew Wolf Antarctic Friend (voice)
Frank Ciornei Klaus
John Morris Screenplay
Brian T. Delaney Young Tom Popper, Sr. (voice)
Ann Roth Costume Design
Maxwell Perry Cotton Billy
Alicia Stevenson Foley Artist
Betsy Aidem Tavern Hostess
Ron Bartlett Sound Re-Recording Mixer
Stephen A. Pope Stunt Coordinator
Desmin Borges Daryl
David Lucarelli ADR Recordist
Mark Mangini Sound Designer, Sound Supervisor
John Davis Producer
Elaine Kussack Gremmins's Secretary
Gary Cergol Graphic Designer
Charleen Richards-Steeves ADR Mixer
Doug Hemphill Sound Re-Recording Mixer
Cynthia Kirchner Pulse Lounge Beautiful Girl (uncredited)
Kathleen Chopin Casting
Rolfe Kent Original Music Composer
Derek Dauchy Executive Producer
Charlie Semine Cop #2 (Quint)
Florian Ballhaus Director of Photography
Andrew Stewart-Jones Animal Control Guy
Curtis Shumaker Sanitation Officer
Henry Kelemen Young Tommy Popper
Scott Curtis Foley Mixer
Johnny Gidcomb ADR Voice Casting
Charles L. Campbell Old Tom Popper, Sr. (voice)
Dawn Fintor Foley Artist
Ellen Christiansen Set Decoration
Chris Beetem Young Developer
Rafael Osorio Marine & Waterfowl Officer
Stephen Apicella First Assistant Director
Chad Sayn Stunts
John G. Velez Gaffer
Patricia Woodbridge Art Direction
Lukasz Jogalla Second Unit Director of Photography
Andy Koyama Sound Re-Recording Mixer
Lee Moore Reginald
Patrick McDonald Second Second Assistant Director
Timothy Shannon Transportation Captain