The Marauders are pranksters, rogues, and occasionally ne'erdowells. But each of them is a Gryffindor, and with that distinction comes a desire to do the right thing. When injustice looms they see it as their right and, indeed, their duty to step up.

Tonks may be Snape's double, Molly is worried, and Remus is, simply, Sweater. RLxNT.