In total, there are 10 Minifigures that come with LEGO Barad-dûr; these include Sauron, Mouth of Sauron, Frodo, Sam and Gollum, Gothmog, the Lieutenant of Morgul, and four of Mordor’s finest orcs.
A Lego set wouldn’t be the same without a few minifigures, either, and Barad-Dûr will come with 10 in total to recreate moments from the movie: Gollum, Sam, Frodo, Gothmog, multiple Mordor Orcs ...