Diary of a Wimpy Kid Wiki



Diary of a Wimpy Kid Wiki

Malvin and Malcolm are the twin sons of Aunt Gretchen, cousins to GregRodrick and Manny Heffley, and the nephews of Veronica, Cakey, Audra, and Susan Heffley. They are very wild and their mother kept them on child-leashes when they were younger[1]. They are also quite mischievous and while they did not interact much with Greg, it can be presumed they cared little for him, as they scared Greg while he took a shower and then proceeded to take pictures of him naked.[2]

In Hard Luck, they play a fairly significant role during Greg's spring break. He mentions how they did dumb stuff in the previous year and caused a lot of stress for the Heffley family, like when Malvin got sent to the ER for getting hit in the forehead while playing catch with a chunk of concrete[3]. Then Malcolm shaved off his eyebrow and some of his hair using Frank's razor and nobody could do anything about it[4]. But in the current events, Malvin and Malcolm only stayed 2 days because Malcolm called 911 after the Heffleys ran out of ketchup, so Frank told them they had to leave[5]. They own lots of pets, including a rabbit that was said to be a male but gave birth to a litter unexpectedly.[6]


Malvin and Malcolm are identical twin boys. They both have freckles, spiky hair, a big nose, and a unibrow. Their appearance bears similar to Rodrick.


Malvin & Malcolm seem to get into a lot of fights and play rough, frequently hurting each other. However, they seem to get along at times, such as when they played a prank on Greg.


  • The first syllable of their names "Mal-" does appear to reflect their nature, as the prefix "Mal-" is a Latin root word meaning "bad". Both of their names have the letter M.




  1. Hard Luck, page 94
  2. Hard Luck, page 118
  3. Hard Luck, page 96
  4. Hard Luck, page 97
  5. Hard Luck, page 138
  6. Hard Luck, page 95