Gil Birmingham (born July 13, 1953) is an American actor of Comanche ancestry, best known for his portrayal of Billy Black in The Twilight Saga film series. In Transformers: The Last Knight he plays Chief Sherman.
Birmingham was born in San Antonio, Texas. His family moved frequently during his childhood, due to his father's career in the military. He learned to play the guitar at an early age and considers music his "first love". After obtaining a Bachelor of Science from the University of Southern California (he graduated from the School of Policy, Planning and Development), he worked as a petrochemical engineer for some time. He changed fields and became an actor.