Wega in all of his glory!
BAHHHHHHHH!
—Wega
Wega is an arcane, eldritch, and seemingly even paranormal entity of uncertain origin taking the form of a hue-shifted Luigi, infamous for the indelible way he materializes out of thin air at, so it seems, the most unexpected of times. Nobody knows for certain if Wega has any affiliation with the aforementioned Luigi and/or his brother beyond his appearance. The only thing known about his family is that he's cousins with Fake Peppino due to a DNA test, and might have some further ties to Slendytubby. Given his evidently purple pigment, it is generally assumed by official government reports that Wega is a huge lean enjoyer.
Wega, alongside his currently anonymous brother (who resembles Mario with a shift of hue), is, unbeknownst to the majority, also a spokesman for the little-known Movies Free firm, a clandestine notorious market with the intent of distributing pirated feature films for absolutely no money at all (in a fashion similar to that of the Pirate Bay), and oddly enough, communicating with Jesus Christ himself. In spite of the organization's malice, Movies Free remains fugitive; anyone who has tried to prevent them from distributing such pirated movies, i.e., the Police, has been shot on the double.
Wega was lonely and sad in his house, all by himself, so one day, he decided to create Heropig by making a fusion of Herobrine and George Pig in the Wa-Machine.