Wormtongue

Grima Wormtongue, aka Wormtongue, was the self-proclaimed biggest all-time number one numero uno fan of the Sarumen. He was obsessed with them, to the point where he actually became second in command to Saruman himself just to be near a Saruman. He was installed as the corrupted helper of the King of Rohan, and twisted his mind to make him a slave of Saruman. However, the King was freed by Gandalf and Wormtongue was outcasted from Rohan.

Fleeing to Isengard, he met back up with Saruman and aided in the defence of Isengard from an assault of Ents, led by Treebeard. Being an idiot, he recommended to launch an attack on the IMPENETRABLE fortress of Helm's Deep, and, suprise suprise, the entire attack force was annihilated. Great work Grima!

Eventually Grima went mad and stabbed Saruman in the back, literally. He fled to the trailer of the Sarumen and begged to be made their groupee. They agreed, only to throw him out the very next day. He rolled down a hill and died at the bottom. The Sarumen were questioned on their actions, to which they said: 'Rough fools receive Rough mercy...'

Wormtongue apparently had on him the Key to Orthanc, his most prized possession, given to him by Saruman for safekeeping and then forgotten about. Grima assumed it was important (it wasn't). He ran around the battlefield proclaiming his prize, but no-one on either side knew or cared what the Key of Orhanc actually did, so no-one bothered to attempt to kill him to retrieve it.

He would worship Sarumen in battle, claiming that 'Saruman is now displeased!' and 'My Lord Saruman bids you to die!' like anyone cared. He would also shout things like 'You bleed easily, don't you?' and 'You are as weak as your women and children before you!' which makes no sense. He even said 'You will not invade our pits!', implying that someone was trying to attack his underarms. Odd.