Keach is the surname of the following people: Benjamin Keach (1640–1704), English Baptist preacher and author Keach's Catechism James Keach (born 1947), American actor, producer, and director Scott Keach (born 1965), Australian equestrian Stacy Keach Jr. (born 1941), American actor, brother of James Stacy Keach Sr. (1914–2003), American actor, father of James and Stacy Jr.