"A Heffley family road trip to attend Meemaw's 90th birthday party goes hilariously off course thanks to Greg's newest scheme to get to a video gaming convention."
Jason Ian Drucker
as Greg Heffley
Alicia Silverstone
as Susan Heffley
Tom Everett Scott
as Frank Heffley
Charlie Wright
as Rodrick Heffley
Owen Asztalos
as Rowley Jefferson
Wyatt Walters
as Manny Heffley
Dylan Walters
Joshua Hoover
as Mac Digby
Chris Coppola
as Beardo
Kimberli Lincoln
as Mrs. Beardo
Mira Silverman
as Brandi Beardo
Carlos Guerrero
as Luis
Danny Vinson
as Hog Man
Stephen 'Big Steve' Dupree
as Tall Farmer
Neva Howell
as Farmer Lady
Ricky Muse
as Butter Vendor
Taylor St. Clair
as Carnie
Kurt Yue
as Fake Dad
Jacinte Blankenship
as Security Guard
Beth Keener
as Reporter
Mimi Gould
as Meemaw
Emma Wetzel
as Country Fair Girl
Elijah Marcano
as Corny's Host
Apollo GT
as XBox Vendor / DXRacer Player
Alma Kent
as Teen Bystander
Alexa Blair Robertson
as Cute Girl #1
Courtney Lauren Cummings
as Cute Girl #2
Robert Hendren
as Motorcycle Cop
Sofia Bowers
as Pigtails Girl
Jody Thompson
as Uncle Gerald
Stephen Ruffin
as Gamer
Anthony Ianitello
as Diaper Hands Cosplayer
Nathaniel Dickson
as Brandon Beardo
Jake Sterner
as Brent Beardo
Bobby Akers
as Gaming Expo Attendee (uncredited)
Lariah Alexandria
as Corny Kid (uncredited)
Madison Alsobrook
as Expo Kid (uncredited)
Cassidy Balkcom
as Corny's Waitress (uncredited)
Taylor Barton
as Fair Kid (uncredited)
Alicia Beshears
as Fair Teen (uncredited)
Kimberly Blaurock
as Professional Cosplayer (uncredited)
Joshua Booker
Maiya Boyd
as Corny Heeley Kid (uncredited)
Michael Bunch
as Laughing Corny's Waiter (uncredited)
Benton Burnett
as Cowboy Family (uncredited)
Randy Burnett
Jamel Chambers
as Expo Gamer Attendee (uncredited)
Jeremy Chesser
as Corny Patron (uncredited)
Kristen Danielle
as Expo Gamer (uncredited)
Aerielle Dodson
as Goth County Fair Patron (uncredited)
Jacob Evans
Juan Gaspard
as Festival Vendor (uncredited)
James Gill
as Steampunk Giant (uncredited)
Ben Hammock
as Fair Employee (uncredited)
Simone Kiffany Jenkins
as Passenger (uncredited)
Kenneth Jones
as Mechanic (uncredited)
Tegan Jones
as Party Guest (uncredited)
Jeff Kinney
as Man at Player Expo (uncredited)
Tylon Larry
Shane Donovan Lewis
as Corny's Kid (uncredited)
John Merical
as Driver (uncredited)
Davis Pak
as Boy (voice) (uncredited)
Anthony Vance Pierce
as Adult Fairgoer (uncredited)
Candy Rachor
Jonathan Rush
Scott Christopher Kelly
Stand In
Peter Burgis
Foley Artist
Adam Bourne
Foley Editor
Jason Swanscott
Renée Tondelli
ADR Editor
Glen Gathard
Foley Mixer
Zoe Freed
Leay Cangelosi
Hairstylist
Moe Coles
Jennifer Hodges
Adruitha Lee
Hair Department Head
Linda Traxler
Michealle Vanderpool
Grady Allen Bishop
Camera Car
Stunts
Melanie Deforrest
Makeup Artist
Chris Diamantides
Jessie Gambardella
Travis Pates
Makeup Department Head
Danny Brown
Assistant Art Director
Jonathan Dossman
Set Dresser
Jeff Ginn
Amber Goodrum
Kristen Jenkins
Set Designer
Cara Price
Set Decoration Buyer
Jason Vigdor
David Mathew Weeks
Marc Glassman
Sound Designer
Wayne Lemmer
Supervising Sound Editor
Sound Re-Recording Mixer
Derek Vanderhorst
Manuela Cripps
Visual Effects Producer
Wes Dorough
Robin Scott Graham
Visual Effects Supervisor
Chris LeDoux
Tim LeDoux
Bobo Skipper
Sara Cobbeldick
Set Costumer
K. Drew Fuller
Costume Supervisor
Les Morgan
Reese Spensley
Joulles Wright
Korii Young
Anthony B. Richmond
Director of Photography
Troy Takaki
Editor
Nina Jacobson
Producer
Book
Brad Simpson
David Bowers
Director
Edward Shearmur
Original Music Composer
Tom Brown
Music Arranger
Writer
Timothy M. Bourne
Executive Producer
Heath M. Howard
Associate Producer
Courtney Bright
Casting
Nicole Daniels
Aaron Osborne
Production Design
Erin Cochran
Art Direction
Tasha Clarkson
Set Decoration
Mary Claire Hannan
Costume Design
Carla Martinez