Remus Lupin (Moony), Peter Pettigrew (Wormtail), Sirius Black (Padfoot), and James Potter (Prongs). Also known as MWPP, this fantastic foursome was the greatest trickster-troublemaker clan in the history of Hogwarts (although as Hagrid quite aptly pointed out, the Weasley twins probably could have given them a run for their money) until James met his untimely demise on Halloween of 1981. Sirius died in 1995, and Remus and Peter both died in 1997. Their legacies, however, live on: every time you use a secret passage or avoid a detention, remember the Marauders.
I was on my way to class when the Marauders set off a Dungbomb in the corridor for Snivellus and I had to take a detour so I wouldn't smell like it, too, so I was late for Charms. Typical.