Brady Noon
Greg Heffley (voice)
Hunter Dillon
Rodrick Heffley (voice)
Ethan William Childress
Rowley Jefferson (voice)
Erica Cerra
Susan Heffley (voice)
Chris Diamantopoulos
Frank Heffley (voice)
Ed Asner
Grandpa Heffley (voice)
Gracen Newton
Manny (voice)
Linda Lavin
Barb (voice)
Loretta Devine
Irene (voice)
Priscilla Lopez
Merle (voice)
Jimmy Tatro
Bill (voice)
Albert Tsai
Drew (voice)
Hudson Yang
Larry (voice)
Nathan Arenas
Mackie (voice)
Vincent Tong
Leland (voice)
Kimberly Brooks
News Anchor (voice)
Veena Sood
Elevator Lady (voice)