Greg Heffley

Zachary Gordon

Acting

Rowley Jefferson

Robert Capron

Acting

Rodrick Heffley

Devon Bostick

Acting

Holly Hills

Peyton List

Acting

Frank Heffley

Steve Zahn

Acting

Susan Heffley

Rachael Harris

Acting

Fregley

Grayson Russell

Acting

Chirag Gupta

Karan Brar

Acting

Heather Hills

Melissa Roxburgh

Acting

Patty Farrell

Laine MacNeil

Acting

Manny Heffley

Connor Fielding

Acting

Manny Heffley

Owen Fielding

Acting

Stan Warren

Philip Maurice Hayes

Acting

Grandpa Heffley

Terence Kelly

Acting

Isabella Wendell-Jefferson

Bronwen Smith

Acting

Mr. Jefferson

Alf Humphreys

Acting

Madison

Elise Gatien

Acting

Mr. Draybick

John Shaw

Acting

Coach Malone

Andrew McNee

Acting

Lenwood Heath

Tom Stevens

Acting

Ben Segal

Bryce Hodgson

Acting

Chris the Bass Player

Christopher De-Schuster

Acting

Taylor Pringle

Dalila Bela

Acting

Troop Master Barrett

Frank C. Turner

Acting

Mrs. Hills

Emily Holmes

Acting

Mr. Jonathon Hills

Jeff Kinney

Writing

Cranium Shaker Operator

Amitai Marmorstein

Acting

Girl at Cranium Shaker #1

Roan Curtis

Acting

Girl at Cranium Shaker #2

Sydney Wong

Acting

Cop

Reese Alexander

Acting

Country Club Manager

Cameron Mitchell Jr.

Acting

Receptionist Amy

Latonya Williams

Acting

Receptionist Julie

Nicole Fraissinet

Acting

Rodrick's Rescuer

Doug Abrahams

Acting

Snack Bar Girl

Melody B. Choi

Acting

High Diving Fan

Wanda Ayala

Acting

Country Club Waiter

Kyle Cassie

Acting

Country Club Pool Guy

Kevin Kruchkywich

Acting

Country Club Waitress

Amy Esterle

Acting

Country Club Valet

Gerry Durand

Acting

Spag Union Math Boy

Joshua J. Ballard

Acting

Spag Union Tracking Device Boy

Matt Mazur

Acting

Tim Warren

Jared Abrahamson

Acting

Biff Warren

Matteo Stefan

Acting

Chip Warren

Collin MacKechnie

Acting

Li'l Cutie

Sofia Bowers

Acting

Newscaster

Dawn Chubai

Acting

Mrs. Warren

Anne Openshaw

Acting

Man in Kitchen

Keith MacKechnie

Acting

Restaurant Owner

Simon Chin

Acting

Dry Cleaner

BJ Harrison

Acting

Confederate Soldier

Russell Roberts

Acting

Spag Union Announcer

Paul Fisher

Acting

Spag Union Boy

David Palacio

Acting

Popcorn Vendor (uncredited)

Peter Brown

Acting

Student (uncredited)

Zeeshan Goawala

Acting

Cook on Phone (uncredited)

Mark Redsky

Acting

Student (voice) (uncredited)

Trenton Rogers

Acting

Union Rifleman (uncredited)

Cameron K. Smith

Acting

Sunblock Guy (uncredited)

James O'Sullivan

Acting

Bus Driver (uncredited)

Ian Thompson

Acting