Greg Heffley

Jason Ian Drucker

Susan Heffley

Alicia Silverstone

Frank Heffley

Tom Everett Scott

Rodrick Heffley

Charlie Wright

Rowley

Owen Asztalos

Manny Heffley

Dylan Walters

Manny Heffley

Wyatt Walters

Mr. Beardo

Chris Coppola

Mac Digby

Joshua Hoover

Brandi Beardo

Mira Silverman

Corny's Host

Elijah Marcano

Mrs. Beardo

Kimberli Lincoln

Luis

Carlos Guerrero

Cute Girl #1

Alexa Blair Robertson

Cute Girl #2

Courtney Lauren Cummings

Reporter

Beth Keener

Hog Man

Danny Vinson

Butter Vendor Girl

Emma Wetzel

Tall Farmer

Stephen 'Big Steve' Dupree

Party Guest (uncredited)

Tegan Jones

Farmer Lady

Neva Howell

Corny's Waitress (uncredited)

Cassidy Balkcom

Butter Vendor

Ricky Muse

Carnie

Taylor St. Clair

Ball Pit Child

Locklyn Black

Random Guy

Kurt Yue

Security Guard

Jacinte Blankenship

Meemaw

Mimi Gould

Corney's Parent

Bina Forbes

Motorcycle Cop

Robert Hendren

XBox Vendor / DXRacer Player

Apollo GT

Teen Bystander

Alma Kent

Expo Kid (uncredited)

Madison Alsobrook*

Mechanic (uncredited)

Kenneth Jones

Passenger (uncredited)

Simone Kiffany Jenkins

Skinny Gamer

Stephen Ruffin

Pigtails Girl

Sofia Bowers

The Twisted Wizard

Richard Drucker

Goth County Fair Patron

Arielle Dodson

Uncle Gerald

Jody Thompson

Diaper Hands Cosplayer

Anthony Ianitello

Festival Vendor (uncredited)

Juan Gaspard

Brandon Beardo

Nathaniel Dickson

Bryan Newton

Brent Beardo

Jake Sterner

Mac Digby

Josh Hoover

Gaming Expo Attendee (uncredited)

Bobby Akers

Corny Kid (uncredited)

Lariah Alexandria

Corny Heeley Kid (uncredited)

Maiya Boyd

Tom Everett

Expo Gamer Attendee (uncredited)

Jamel Chambers

Corny Patron (uncredited)

Jeremy Chesser

Steampunk Giant (uncredited)

James Gill

Expo Gamer (uncredited)

Kristen Danielle

Man at Player Expo (uncredited)

Jeff Kinney

Fair Kid (uncredited)

Tylon Larry

Corny's Kid (uncredited)

Shane Donovan Lewis

Driver (uncredited)

John Merical

Boy (voice) (uncredited)

Davis Pak

Corny Patron (uncredited)

Candy Rachor