Ra's al Ghul
Ra's al Ghul, aka The Demon's Head, is one of the Detective's most formidable and cunning foes.
Ra's is one of the more simple figures of the collection. He is based entirely off of his appearance from Batman: the Animated Series and as such is rather plain in terms of costuming. His head was the first piece constructed for the entire collection and was initially used as the standard design basis for other early characters such as Mad Hatter and (the later unused) Slade Wilson.
Also fun fact, apparently...I completely forgot to turn on the Lazarus pit lights for the entirety of BW...so...surprise?