Mireille Enos was born to an American father and French mother who met while her father was serving a Mission for the Church of Jesus Christ of Latter Day Saints. She is the fourth of five children and grew up in Houston, Texas, where, following in her older siblings footsteps, she attended The High School for the Performing and Visual Arts. She then went to Brigham Young University. She spent ten years living in New York City during which time she was nominated for a Tony Award for her portrayal of Honey in Edward Albee's Who's Afraid of Virginia Woolf. She is now married to actor Alan Ruck.

Once part of the New York City acting troupe "Handcart Ensemble".Sister of actors Veronique Enos and Jongiorgi Enos.Is a native of Houston, Texas.Studied at Brigham Young University. She is a member of The Church of Jesus Christ of Latter-Day Saints.Nominated for a Tony Award (Best Featured Actess in a Play) in 2005 for her performance in the Broadway production "Who's Afraid of Virginia Woolf".Graduate of the High School for Performing and Visual Arts in Houston, Texas.