He is head one the White Council, Lord of Isengard, etc.
Saruman was the head of the White Council until about sixty years after the Hobbit during the events of 'The Lord of the Rings' when Gandalf removed Saruman.
I believe it's Saruman the White (later Saruman of Many Colours).
Saruman the White
That would be Saruman the White, who in the books becomes Saruman the Many Colored before having his staff shattered by Gandalf the White. A Maiar (demigod) and Istari (wizard), he was corrupted by the lure of power, and eventually died at the hands of Grima Wormtongue. Saruman was given the tower by the Steward of Gondor, Beren, in the year 2759 of the Third Age.
Saruman the White
Saraman kind of cracked, and he lost his color. He claimed to be Saruman of Many Colours, but it was not a true title.
Saruman was created in 1940-08.
Saruman #1, white (later fallen, and unranked). Gandalf #2, grey (later white and #1). Radagast #3, brown. Morinehtar #4, blue. Rómestámo #5, blue.
Christopher Lee played Saruman.
I assume you are meaning Saruman, who was played by Christopher Lee. Otherwise it's the Dark Lord himself, Sauron.
I'll go with the 'Black Captain' - Witch King of Angmar .
Zeus Old Testament God Dumbledore Father Time Gandalf Saruman