| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony B. Richmond | Crew | Camera | Director of Photography |
 Brad Simpson | Crew | Production | Producer |
 Brent Thomas | Crew | Art | Production Design |
Coreen Mayrs | Crew | Production | Casting |
 David Bowers | Crew | Directing | Director |
 Ed Shearmur | Crew | Sound | Original Music Composer |
Heike Brandstatter | Crew | Production | Casting |
 J.J. Makaro | Crew | Crew | Stunts |
Jeremiah Samuels | Crew | Production | Executive Producer |
Mary-Lou Storey | Crew | Art | Set Decoration |
 Maya Forbes | Crew | Writing | Screenplay |
Monique Prudhomme | Crew | Costume & Make-Up | Costume Design |
 Ronna Kress | Crew | Production | Casting |
Shannon Grover | Crew | Art | Art Direction |
 Troy Takaki | Crew | Editing | Editor |
 Wallace Wolodarsky | Crew | Writing | Screenplay |
 Nina Jacobson | Crew | Production | Producer |
 Jeff Kinney | Crew | Writing | Book, Executive Producer |
Kimberley von Ilberg | Crew | Crew | Stunts |
 Alf Humphreys | Cast | Actor | Mr. Jefferson |
 Amy Esterle | Cast | Actress | Country Club Waitress |
 Anne Openshaw | Cast | Actress | Mrs. Warren |
 B. J. Harrison | Cast | Actress | Dry Cleaner |
 Bryce Hodgson | Cast | Actor | Ben Segal |
Cameron Mitchell Jr. | Cast | Actor | Country Club Manager |
 Doug Abrahams | Cast | Actor | Rodrick's Rescuer |
 Emily Holmes | Cast | Actress | Mrs. Hills |
 Frank C. Turner | Cast | Actor | Troop Master Barrett |
Gerry Durand | Cast | Actor | Country Club Valet |
 John Shaw | Cast | Actor | Mr. Draybick |
 Keith MacKechnie | Cast | Actor | Man in Kitchen |
 Kyle Cassie | Cast | Actor | Country Club Waiter |
 Nicole Fraissinet | Cast | Actress | Receptionist Julie |
 Rachael Harris | Cast | Actress | Susan Heffley |
 Reese Alexander | Cast | Actor | Cop |
 Russell Roberts | Cast | Actor | Confederate Soldier |
 Steve Zahn | Cast | Actor | Frank Heffley |
 Terence Kelly | Cast | Actor | Grandpa Heffley |
 Andrew McNee | Cast | Actor | Coach Malone |
 Bronwen Smith | Cast | Actress | Isabella Wendell-Jefferson |
 Devon Bostick | Cast | Actor | Rodrick Heffley |
 Elise Gatien | Cast | Actress | Madison |
 Grayson Russell | Cast | Actor | Fregley |
 Simon Chin | Cast | Actor | Restaurant Owner |
 Trenton Rogers | Cast | Actor | Student (voice) (uncredited) |
 Peyton List | Cast | Actress | Holly Hills |
 Robert Capron | Cast | Actor | Rowley Jefferson |
 Zachary Gordon | Cast | Actor | Greg Heffley |
 Amitai Marmorstein | Cast | Actor | Cranium Shaker Operator |
 Christopher De-Schuster | Cast | Actor | Chris the Bass Player |
Collin MacKechnie | Cast | Actor | Chip Warren |
 Connor Fielding | Cast | Actor | Manny Heffley |
 Dalila Bela | Cast | Actress | Taylor Pringle |
James O'Sullivan | Cast | Actor | Sunblock Guy (uncredited) |
 Jared Abrahamson | Cast | Actor | Tim Warren |
 Karan Brar | Cast | Actor | Chirag Gupta |
 Laine MacNeil | Cast | Actress | Patty Farrell |
 Matt Mazur | Cast | Actor | Spag Union Tracking Device Boy |
 Melody B. Choi | Cast | Actress | Snack Bar Girl |
 Tom Stevens | Cast | Actor | Lenwood Heath |
Matteo Stefan | Cast | Actor | Biff Warren |
 Melissa Roxburgh | Cast | Actress | Heather Hills |
 Philip Maurice Hayes | Cast | Actor | Stan Warren |
 Dawn Chubai | Cast | Actress | Newscaster |
 Roan Curtis | Cast | Actress | Girl at Cranium Shaker #1 |
 Peter Brown | Cast | Actor | Popcorn Vendor (uncredited) |
 Cameron K. Smith | Cast | Actor | Union Rifleman (uncredited) |
Jeff Kinney | Cast | Actor | Mr. Jonathon Hills |
 Owen Fielding | Cast | Actor | Manny Heffley |
 Kevin Kruchkywich | Cast | Actor | Country Club Pool Guy |
 Joshua J. Ballard | Cast | Spag Union Math Boy | |
 David Palacio | Cast | Actor | Spag Union Boy |
 Latonya Williams | Cast | Actress | Receptionist Amy |
Wanda Ayala | Cast | High Diving Fan | |
Zeeshan Goawala | Cast | Student (uncredited) | |
Sydney Wong | Cast | Girl at Cranium Shaker #2 | |
Sofia Bowers | Cast | Actress | Li'l Cutie |
Paul Fisher | Cast | Spag Union Announcer | |
Mark Redsky | Cast | Cook on Phone (uncredited) | |
Ian Thompson | Cast | Bus Driver (uncredited) | |
| Person | Type | Job | Role(s) |
