Gríma Wormtongue

Gríma, called (the) Wormtongue, is a fictional character in J. R. R. Tolkien's The Lord of the Rings. He serves as a secondary antagonist there; his role is expanded in Unfinished Tales. He is introduced in The Two Towers as the chief advisor to King Théoden of Rohan and henchman of Saruman.

To some psychologists, Wormtongue serves as an archetypal sycophant. Tolkien scholars note that Tolkien based Wormtongue on the untrustworthy character Unferth in Beowulf. He is presumptive, behaving as if he already rules Rohan, and exemplifies lechery, as correctly guessed by Gandalf; he hopes to become rich, and to take Éowyn as the woman he desires.

The name Gríma derives from the Old English or Icelandic word meaning "mask", "helmet", or "spectre".