William Daniels (b. March 31, 1927) is an American actor. For the original Knight Rider, he provided the voice of the K.I.T.T. (2000), for which he requested no credits given.
He is perhaps best known for his roles as U.S. President John Adams in the musical 1776 and as Mr. Feeny in the 1993-2000 television sitcom Boy Meets World.