Greg Heffley
Susan Heffley
Frank Heffley
Rodrick Heffley
Rowley Jefferson
Manny Heffley
Mac Digby
Beardo
Mrs. Beardo
Brandi Beardo
Luis
Hog Man
Tall Farmer
Farmer Lady
Butter Vendor
Carnie
Fake Dad
Security Guard
Reporter
Meemaw
Country Fair Girl
Corny's Host
XBox Vendor / DXRacer Player
Teen Bystander
Cute Girl #1
Cute Girl #2
Motorcycle Cop
Pigtails Girl
Uncle Gerald
Gamer
Diaper Hands Cosplayer
Brandon Beardo
Brent Beardo
Gaming Expo Attendee (uncredited)
Corny Kid (uncredited)
Expo Kid (uncredited)
Corny's Waitress (uncredited)
Fair Kid (uncredited)
Fair Teen (uncredited)
Professional Cosplayer (uncredited)
Corny Heeley Kid (uncredited)
Laughing Corny's Waiter (uncredited)
Cowboy Family (uncredited)
Expo Gamer Attendee (uncredited)
Corny Patron (uncredited)
Expo Gamer (uncredited)
Goth County Fair Patron (uncredited)
Festival Vendor (uncredited)
Steampunk Giant (uncredited)
Fair Employee (uncredited)
Passenger (uncredited)
Mechanic (uncredited)
Party Guest (uncredited)
Man Splashed by the Pool (uncredited)
Man at Player Expo (uncredited)
Corny's Kid (uncredited)
Driver (uncredited)
Boy (voice) (uncredited)
Adult Fairgoer (uncredited)
Corny Parent (uncredited)