Yes, unfortunately, even Royal Doulton figurines get reproduced.  These fake figurines show up occasionally on Ebay and sometimes by unsuspecting parties that purchased them without knowing themselves.  To spot these forgeries you must first understand how they are made, and second be willing to ask questions before you bid.  As to how most forgeries are made, it is quite simply.  They start with a real figurine, and make a mold of it.  Then, using a slip, they fire the fake and have it painted, glazed and refired.  Thus a fake is born, however, it is no longer the same size as the original.  There is shrinkage in the firing process and a typical 8" piece is now 6 3/4 to 7 1/4".  A second way to produce the fake is to use the mold created by the original and fill it with light weight plaster.  In that no firing is needed, the piece maintains the same size as the mold, however, it is much heavier then the original piece.  Also figurines made by this method tend to have the coloration look different or off.  To protect yourself, know the standard of the piece you are looking to buy.  There are many books that will give you the information you need, or ask a dealer that has information on Royal Doulton, as most will happily share the information.  Typically, there is more than one thing wrong with the fake.  A commonly seen fake is the Town Crier HN 2119, who sports a green and yellow paisley vest.  While the fakes have the imprint of a paisley, they are generally painted one color, either a green or light yellow, not both.  Another common fake seen is the Hornpipe HN 2161, who is supposed to be 9 1/4" tall, but when forged is normally around 8" tall.  If you have doubts or think the price is too cheap, then maybe you are looking at a fake, and you should ask someone else for their opinion, or look up the standard in one of the many books written on Royal Doulton figurines.