who is the brown wizard in the hobbit
Radagast Radagast the Brown is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. He is one of the Istari, also known as "Wizards", who were sent by the angelic Valar to aid the Elves and Men of Middle-earth in their struggle against the Dark Lord Sauron. Radagast appears in The Lord of the Rings and Unfinished Tales, and is mentioned in The Hobbit and The Silmarillion.
Middle-earth The Valar withdrew from direct involvement in the affairs of Middle-earth after the defeat of Morgoth, but in later years they sent the wizards or Istari to help in the struggle against Sauron. The most important wizards were Gandalf the Grey and Saruman the White. Gandalf remained true to his mission and proved crucial in the fight against Sauron. Saruman, however, became corrupted and sought to establish himself as a rival to Sauron for absolute power in Middle-earth. Other races involved in the struggle against evil were Dwarves, Ents and most famously Hobbits. The early stages of the conflict are chronicled in The Silmarillion, while the final stages of the struggle to defeat Sauron are told in The Hobbit and in The Lord of the Rings.