Greg Heffley (voice)
Brady Noon
Rowley Jefferson (voice)
Ethan William Childress
Drew (voice)
Albert Tsai
Larry (voice)
Hudson Yang
Bill (voice)
Jimmy Tatro
News Anchor (voice)
Kimberly Brooks
Manny (voice)
Gracen Newton
Leland (voice)
Vincent Tong
Elevator Lady (voice)
Veena Sood
Additional Voices (voice)
Ava Acres
Rodrick Heffley (voice)
Hunter Dillon
Susan Heffley (voice)
Erica Cerra
Frank Heffley (voice)
Chris Diamantopoulos
Grandpa Heffley (voice)
Ed Asner
Barb (voice)
Linda Lavin
Irene (voice)
Loretta Devine
Merle (voice)
Priscilla Lopez
Mackie (voice)
Nathan Arenas
Producer
Jeff Kinney
Screenplay
Book
In Memory Of
Original Music Composer
John Paesano
Director
Luke Cormican