Willy the Wizzard v. Harry Potter

UK Court To Potter Plagiarism Suit: Expelliarmus!
Law360, New York (July 18, 2011) -- J.K. Rowling's spokeswoman said Monday that a U.K. lawsuit alleging the author copied “Willy the Wizard” creator Adrian Jacobs' work for use in a Harry Potter book has been dismissed after Jacobs' estate failed to pay the bond to continue the case.


Justice David Kitchin of the High Court of Justice had said in March that the deceased author's estate would have to produce a £1.5 million security bond in order to continue with the copyright infringement case against Rowling and Bloomsbury Publishing PLC

http://www.law360.com/ip/articles/258662?utm_source=newsletter&utm_medium=email&utm_campaign=ip

US Suit same guy:
http://www.law.com/jsp/nlj/PubArticleNLJ.jsp?id=1202463526469&Harry_Potter_publisher_sued_in_New_York_for_alleged_copyright_infringement&slreturn=1&hbxlogin=1

Here is the Book that claims J.K. Rowling plagiarized  them.

http://www.willythewizard.com/index.html


Here's another one- scam artist
http://www.law.com/jsp/law/LawArticleFriendly.jsp?id=900005532294

History of People trying to cash in on Rowling:
http://en.wikipedia.org/wiki/Legal_disputes_over_the_Harry_Potter_series