Karan Brar

Chirag Gupta

Steve Zahn

Frank Heffley

Chloë Grace Moretz

Angie Steadman

Rachael Harris

Susan Heffley

Robert Capron

Rowley Jefferson

Jeff Kinney

Executive Producer

Zachary Gordon

Greg Heffley

Thor Freudenthal

Director

Rob LaBelle

Mr. Winsky

Devon Bostick

Rodrick Heffley

Andrew McNee

Coach Malone

Alex Ferris

Collin

Grayson Russell

Fregley

Owen Best

Bryce Anderson

Cole Heppell

Quentin's Sidekick

Cainan Wiebe

Quentin

Laine MacNeil

Patty Farrell

Belita Moreno

Mrs. Norton

Connor Fielding

Manny Heffley

Owen Fielding

Manny Heffley

Nicholas Carey

Pete Hosey

Samuel Patrick Chu

Carter

Donnie MacNeil

Wade

Samantha Page

Shelley

Ava Hughes

Marley

Harrison Houde

Darren Walsh