Gilpin was born on May 31, 1951, in
Boyce, Virginia, the son of Lucy Trumbull (Mitchell) and Kenneth Newcomer Gilpin, a businessman. His paternal great-grandfather was politician and general
Lawrence Tyson. His maternal grandfather was World War I hero and aviation pioneer
Gen. William "Billy" Mitchell. His first cousin is
Drew Gilpin Faust, who served as
president of Harvard University from 2007 to 2018, . Gilpin attended
Phillips Exeter Academy, graduating in 1969, and then obtained his undergraduate degree from
Harvard University in 1973. He studied acting at the Neighborhood Playhouse School of the theatre in New York City. == Career ==