John Lacy (born August 29, 1965) is an American actor-director-writer living in Los Angeles. John was born in Iowa City where his father, the writer Robert Lacy, studied at the Iowa Writer's Workshop under the mentor-ship of Kurt Vonnegut and Richard Yates, alongside fellow students and notable writers, Andre Dubus, William Harrison, Theodore Weesner, and detective novelist James Crumley. The family settled in Minneapolis after Robert took a position working for the State Capitol as a speech writer for the late Senator Nick Coleman.

John's mother, Lyn Ellen Lacy is an accomplished educator and published author, specializing in children's' visual literacy. His older brother, Peter Lacy, works as an innovator in corporate culture integration in Seattle, WA; and his older sister, Ruth Grim, is a museum curator in Daytona, Florida.