What about past and present members of the Slug Club: Marcus Belby, Melinda Bobbin, Dirk Cresswell, Barnabas Cuffe, Ambrosius Flume, Ciceron Harkiss, Gwen Jones, Cormac McLaggen and Blaise Zabini? Then there's Gawain Robards, the Head of the Auror Office, Octavius Pepper, who disappeared, and Galatea Merrythought, the DADA professor in the first half of the twentieth century. And the infamous Roonil Wazlib, of course. Most of those look to me like anagrams waiting to happen.
The best I could come up with today was:
So this inaugural challenge on hp_wordplay is to devise the most appropriate (or wildly inappropriate?) anagram for a Harry Potter character or place.
Special rule: no Tom Marvolo Riddle (unless you can come up with something really original).
Please leave any suggestions as comments on this post, as everyone has so far. Thanks, Gin, for pointing out that I hadn't made this clear. Use of the Internet Anagram Server is permitted (I don't see how I could stop you anyway!) but please be selective and just post the best ones.