Manny Heffley is Greg and Rodrick's baby brother, and a major character in the Diary of a Wimpy Kid franchise.
Qualities That Won't Be Televised
- Being the third and youngest child of the Heffley family, Manny's problem as a 3 year old toddler is that he is severely spoiled and entitled. He also throws meltdowns very easily. Notable examples are:
- He threw a meltdown in the middle of a religious Easter ceremony, embarrassing the entire family in church.
- In Wrecking Ball, when Greg was going to do something, he wanted to come with him, Frank told him he was too young to help, so he had a fit because of that.
- In the first book, he embarrassed and annoyed Greg on saying "bubby" during the rehearsal of Wizard of Oz at school, which was ruined because of him.
- In The Last Straw, Manny starts to swear when Rodrick was also swearing throwing an object in front of their mother.
- In Cabin Fever, Manny was at his absolute worst, when he knocked the power out of the house, and left his family to nearly die just because no one taught him to tie his shoes. And he didn't get punished because he's a toddler. No matter how young the person is, near murder is a severe crime and the perpetrator must receive punishment.
- Additionally, he doesn't get his comeuppance, as on Christmas he get toys and a pair of shoes.
- To make it worse, even though he was taught how to tie his shoes, he still had Susan tie his shoes for him.
- He may be pretty intelligent for a baby (like Stewie Griffin), but he has abused his intelligence a few times. Those examples were when he hacked Greg's Net Kritterz account and changed the password and also messed up the settings and changed the parental lock feature on the TV.
- No one is brave enough to stand up to him. Not even Susan and Frank, and he doesn't get punished for his actions, making him a Karma Houdini.
- As such, he uses his young age as an excuse to do bad things, which is why a lot of times he doesn't get punished for his actions. While it's understandable for him to do bad things given his age, it still does not excuse his behavior.
- He has no sense of boundaries, like wearing Greg's headgear, as shown in The Ugly Truth.
- He was nothing but a hindrance in The Long Haul, and what does he get in return? A pet pig.
- He may be a toddler, but he holds ridiculously powerful grudges towards Greg, Rodrick, or Rowley.
- Unlike Greg or Rodrick, he doesn't have any real friends. For example, in The Third Wheel, he made up his imaginative friends as an excuse to get extra cookies and away with everything, and the other day, he smashed a plate on the floor and told Susan it was Johnny Cheddar.
- He has a rather questionable design and looks like some kind of crocodile with two teeth rather than an actual baby with a circle head for example.
- He is a huge tattletale, as he tells on Greg for literally any bad thing he does, even things he didn't even do.
- An example of this would be when Frisky, a cat the Heffleys owned, knocked over a vase, Manny blames it on Greg, and worse Susan sides with him.
Qualities That Will Be Televised
- The "PLOOPY!" thing was at least decently funny.
- To be fair, Manny only acts this way because Susan and Frank spoil him to death.
- He sometimes doesn't bother his brothers, Greg and Rodrick.
- He means well since he's a toddler.
- Susan and Frank have been shown sometimes to get angry at him and there have been some occasions in which they reprimand him for the troubles he causes (like when Susan convinced him to apologize to Greg for breaking his console in Rodrick Rules and Frank having to buy a leash for Manny because he was trying to escape from them to retrieve his pet pig in The Long Haul).
- Given his age, Manny still has time to change his baby-like behavior as he grows up.
- He's tolerable in The Deep End due to him not acting spoiled like he usually is, as well as being less entitled than usual. Plus, he fixed the bridge by making the Heffleys' submerged RV connect to its gap and allowing everyone to leave the campsite, which is very nice of him.
- His design, sometimes, despite being questionable, can be cute and adorable.
- While still annoying, he's more tolerable in the first three movies than in the books and doesn't do anything too sociopathic outside of being a nuisance to Greg.
- The Wimpy Kid series wouldn't be the same without him.