Brady Noon

Greg Heffley (voice)

Ethan William Childress

Rowley Jefferson (voice)

Hunter Dillon

Rodrick Heffley (voice)

Erica Cerra

Susan Heffley (voice)

Chris Diamantopoulos

Frank Heffley (voice)

Ed Asner

Grandpa Heffley (voice)

Linda Lavin

Barb (voice)

Loretta Devine

Irene (voice)

Priscilla Lopez

Merle (voice)

Nathan Arenas

Mackie (voice)

Albert Tsai

Drew (voice)

Hudson Yang

Larry (voice)

Jimmy Tatro

Bill (voice)

Kimberly Brooks

News Anchor (voice)

Gracen Newton

Manny (voice)

Vincent Tong

Leland (voice)

Veena Sood

Elevator Lady (voice)

Ava Acres

Additional Voices (voice)

Sky Alexis

Additional Voices (voice)

Noah Kaye Bentley

Additional Voices (voice)

Asher Bishop

Additional Voices (voice)

Jen Cain

Additional Voices (voice)

Tristan Allerick Chen

Additional Voices (voice)

Juliet Donenfeld

Additional Voices (voice)

Marley Garner

Additional Voices (voice)

Johnny Gidcomb

Additional Voices (voice)

Lex Lang

Additional Voices (voice)

Michael Leone

Additional Voices (voice)

Ava Mae Leslie

Additional Voices (voice)

Susan Leslie

Additional Voices (voice)

Matt Nolan

Additional Voices (voice)

Andre Robinson

Additional Voices (voice)

Benjamin Valic

Additional Voices (voice)

Paul-Mikél Williams

Additional Voices (voice)

ViviAnn Yee

Additional Voices (voice)

Ruth Zalduondo

Additional Voices (voice)