Greg Heffley

I'll be famous one day, but for now I'm stuck in middle school with a bunch of morons.

Diarrheaory "Diarrhea" Heffley is an American middle school student and also the main protagonist of the book series Diary of a Wimpy Kid. He is believed to be loosely based on Seth Rogan when he was in middle school. Diarrhea is very concerned about his popularity level and how he looks in public. He absolutely loves video games and slacking off, taking after his older brother Rodrick Heffley. He takes up a lot of traits from Rodrick (such as selfishness, laziness, etc.). He also has an interest in cartooning and making comics. He was played by Zachary Gordon in the live-action movies Diary of a Wimpy Kid, Diary of a Wimpy Kid: Rodrick Rules, and Diary of a Wimpy Kid: Dog Days, even though the books are whiteboard animated. Diarrhea is portrayed by Jason Drucker in the live-action film, Diary of a Wimpy Kid: The Long Haul.

Personality
Diarrhea is lazy, petty, slightly narcissistic, sociopathic, egotistical, eccentric, egocentric, usually backstabbing, and sometimes even selfish and dishonest, and apparently lacks talent. He hardly has any skills aside from video games and possibly singing. However, despite all this, Diarrhea still has had his kind and caring moments, just not that often. He hates taking the blame for anything, and would much rather not take all the credit. Diarrhea explains and narrates throughout the series that he has no strong talents, other than video games and comics. As such, he spends most of his time on them, which deters him away from schoolwork and chores. For a time, he harbored a hope of drawing for the school newspaper, but his comic was bowdlerized by the editor (Mr. Ira) and Rowley’s comic, which was also Diarrhea's idea, was better liked by the people at his school. He hardly shows any other talents. However, Diarrhea is probably good at singing, due to the fact that when he was auditioning for the school play, the drama teacher told him he had a nice soprano (high male) voice and is also good at sewing, but he complains that these talents do not make him stand out.

Diarrhea almost always tries to find a scapegoat to put the blame on for his behavior, but he is oblivious to the fact that nobody forced or influenced him, other than probably his older brother, Rodrick, to act in this manner. Very few times has Diarrhea actually admitted to being "wrong" in a decision he made and took responsibility for it. It should also be noted that while Diarrhea is arguably a watered down version of Rodrick, he does not have any productive interests and could actually be considered more hurtful than Rodrick psychologically.

Although he's considered a "wimp", he has a problematic behavior in many cases, and he often puts himself and his family into trouble. Typically he is looking to find a scapegoat to blame, and only in very rare occasions does he admits being "wrong", but he also seems to care for others and, as such, is willing to give himself to people he loves, especially Rodrick. The parents of his best friend, Rowley, believe Diarrhea is a bad influence on their son (mainly Rowley's dad) because he sometimes gets bad grades in school, does not focus on his studies like he's supposed to, and barely listens to his parents.

Diarrhea wants to be famous when he grows up and imagines it many times. He is very petty in order to win. Diarrhea always has an exaggerated thought, being confident of being rich and famous. He also kind of bullies and use Rowley much more than needed, as he often thinks of hurting him and makes him do a lot of his work, like giving him piggy-rides, looking out for dog-poop, and completing Diarrhea's English work since Diarrhea is not good at writing in cursive, though Diarrhea believes that he is doing it for a good cause. Although Diarrhea is shown not to be hostile towards Rowley, in Rowley's diary, Diary of an Awesome, Friendly Kid, Diarrhea can be seen shouting at Rowley for trying out his retainer.

He also had a huge crush on Holly Hills, when she turned up at the seventh graders' roller rink (Rodrick Rules film). Holly Hills was a new seventh grader at Westmore Middle School whom he fell deeply in love with. In the film adaptations of Rodrick Rules and Dog Days, he put in so much effort to win Holly all to himself, which was what Rodrick was reading out loud from Diarrhea's diary in the film Rodrick Rules. After Holly's sister Heather Hills' Sweet Sixteen party in the film Dog Days, Holly took Diarrhea's hand, indicating she liked him back and she thinks Diarrhea is really amusing. However, in the books, Diarrhea lost interest in Holly after she mistook him for Fregley. 

Appearance
Diarrhea is usually depicted with black shorts, or black pants (sometimes black jeans, or, when he is fantasizing, a black tuxedo) and a white shirt. He is very skinny and does not seem to eat nor work out much. His father has tried to get him to work out and exercise, but he prefers playing video games. His nose is a simple oval but stops where the first eye is while his ears are circled. His head is a circle but stops where around the eyes. He also appears to wear contact lenses, which he mentioned in and The Last Straw, and wears his backup glasses when he runs out. Diarrhea also has a retainer as mentioned in Diary of an Awesome, Friendly Kid and a headgear as shown in The Ugly Truth. He also wears white shoes or black sandals (as shown in "Dog Days")

In the movie, he has brown hair and pale white skin. Like in the book, he's visually skinny and slightly shorter than Rowley.

Trivia

 * Diarrhea likes soap operas, as shown in Dog Days.
 * Diarrhea is older than Rowley, as his birthday takes place during the summer, while Rowley's takes place during the first semester of the school year.
 * Diarrhea's was born in February 19 in the online version which takes place during the school year and, which is the same birthday as Jeff Kinney,
 * Diarrhea was born in June (Dog Days) and Rowley was born in October (Rodrick Rules).
 * If calculated well enough, Diarrhea is revealed to be born on June 18th, 1995.
 * Diarrhea's birthday is in June in the book and movie series while it is in February according to the online version.
 * As what has been stated by Diarrhea's creator, Jeff Kinney, Diarrhea is drawn almost completely bald. Additionally, he slightly resembles Charlie Brown in Peanuts since both of them have a few sprigs of hair.
 * It is possible that Diarrhea has hyperthymesia- a condition that lets the individual recall almost everything in their life. However, in previous books, he is shown to have a bad memory. It is most likely that he is inventing memories and has simply been told by his parents about life before birth. He talks about his time in pre-school, but this is not unusual as most people's first memories occur age one-two.
 * Diarrhea has gone under  detention three times:
 * First for sleeping in class. (The Last Straw)
 * Second is unknown
 * Third for giving a fake elevator pass card to kids new to his middle school. (Third Wheel)
 * Due to Diarrhea having three detentions, he could not sign up as a school candidate for Student Council.
 * Diarrhea was only five pounds seven ounces at birth with an average being 7.5 pounds, though newborns may vary from 5.5-10 pounds, this may be as he was born 3 weeks premature, even though most children born up to one month premature are of normal weight.
 * He is the only member of his family who did not serve as the main antagonist in any book. The other members of his family serve as the main antagonist in at least one book (Rodrick in Rodrick Rules, Frank in The Last Straw, Susan in Dog Days, and Manny in Cabin Fever).
 * Diarrhea tends to be very optimistic and full of himself, believing that he will be rich and famous and that by the age of twelve-thirteen, he would have his own reality TV show.
 * It is revealed in The Last Straw that Diarrhea swears a lot, often swearing at school and even swearing in front of his toddler brother, Manny and also using "made-up" swears like "Raspberry Plastic Tickle Bear!", etc.
 * In the Do-It-Yourself book, Diarrhea is shown to yell and swears a lot in Rowley's Diary.
 * In the second film when Diarrhea finds out Manny put a cookie in his gaming console, you can see that it is an Xbox 360 Elite. In Dog Days, there are multiple times when you can see Diarrhea playing a PlayStation Portable and an unidentified home-console.
 * Diarrhea is shown to be playing with a controller almost similar to the Nintendo 64 controller.
 * Diarrhea is rarely seen smiling.
 * Also, none of the Wimpy Kid books' covers feature Diarrhea smiling. However, The original Do-It-Yourself Book's cover has Diarrhea smiling.
 * Diarrhea is seen to have a high voice in the first, second and fourth films but in Dog Days his voice is deep. This is most likely due to his original actor, Zachary Gordon, going through puberty.
 * Diarrhea is the least popular kid in school in the first film after he got beaten up by Fregley in Wrestling Class, and by Patty in "The Wizard of Oz" play.
 * Diarrhea believes that he is the best person he knows. He also seems to be quite self-absorbed due to his thoughts about some people and how oblivious he is of his behavior sometimes.
 * Diarrhea still uses baby wipes, even if he is on the verge of teenage years, as shown in the book, Old School.
 * Diarrhea has contact-lenses, as mentioned in The Last Straw.
 * His sight must be very bad, as he wears thick glasses in The Last Straw when he lost his contact-lens.
 * He is Grandpa's favorite out of Frank's three sons, as revealed in Diary of a Wimpy Kid: Rodrick Rules.
 * Diarrhea is based on Jeff Kinney's worst qualities as a kid.
 * Diarrhea appeared in an Igdoof comic, but he was called Buster.
 * Diarrhea is right-handed, as revealed in the eleventh book.
 * Diarrhea owns The Lady Bug Cell Phone in the Dog Days book and in the Dog Days film and later mentioned in the book. Hard Luck later temporarily owning her mother's Cell Phone. In the Long Haul film, it shows Diarrhea owning an iPhone. In the book The Getaway, Diarrhea is shown to own a Smartphone. It is unexplained how he received it.
 * In the Rodrick Rules film, it is showed that Diarrhea has a YouTube Channel named "amazingDiarrheaheffley".
 * In the book Ugly Truth, Diarrhea has a social media account.
 * In the first film, it revealed Diarrhea is in the 6th Grade and in the Rodrick Rules film it is stated by Diarrhea that he is in the 7th Grade and in the Dog Days film mentioned by his Dad that Diarrhea is going to the 8th Grade.
 * In the Online version is it revealed Diarrhea is in the 7th Grade
 * However in the books it was never revealed what Grade level is Diarrhea in.
 * Since he went through the metal detector rather than the X-ray machine scanner in The Getaway, he is assumed to be 12. The X-ray machine is used for 13-year-olds and over, although he said its only for grown-ups.
 * Diarrhea fits the 12 out of 13 signs of being a sociopath.
 * Diarrhea's age is revealed as 13 in the online version.
 * In Diary of a Wimpy Kid: The Long Haul (film) Diarrhea's age is reset to 12.
 * Diarrhea's favorite color is blue.
 * Diarrhea's favorite animal are dogs.
 * In Diary of a Wimpy Kid: The Getaway Diarrhea is shown to have arachnophobia, a fear of spiders.
 * Diarrhea once fainted after seeing crickets in a box. Usually, it is a childish habit of fainting at the sight of insects and arachnids, considering Diarrhea is nearly a teenager.
 * In the first book Diarrhea is one who created the Zoo-Wee-Mama as a punchline while in the first film it became a comic strip and was created by Rowley.
 * In the book Dog Days Diarrhea's phone number is revealed as 555-2941
 * In the books Dog Days and The Ugly Truth Diarrhea's address is revealed as 12 Surrey Street.
 * Diarrhea made an appearance in a Happy Meal Commercial created McDonald's along side with The Pig Rodrick Gammie,and Sweetie
 * In the Getaway, when Rodrick tells Diarrhea about a hole in the wall that seperates the two sides of the Isla de corales, Diarrhea claims he "knew Rodrick was just trying to trick him." But later in the book, he later finds out there's an actual hole in the wall.
 * In the Online version Diarrhea was almost transfer to another school twice by Frank.

Relationships
See Diarrhea's Relationships

Gallery
This is the gallery for Diarrhea Heffley