Istar

Istari (singular Istar) is the collective Elvish name for the five wizards of J.R.R. Tolkien's Middle-earth. Three of the Istari are definitively known by name: Saruman the White, Gandalf the Grey, and Radagast the Brown. The other two, sometimes referred to as the Blue Wizards (and named as Alatar and Pallando in some of the versions of the tale), are missing in action and presumed corrupted or dead. In fact, the only Istar who was not diverted from his purpose to combat Sauron was Gandalf. Saruman went rather egregiously over to the side of evil, and Radagast found that he preferred talking to plants and animals.

All of the Istari are Maiar.