Lynda was born in San Marcos, Texas as Lynda Louise Day. She spent summers during high school in New York working for the Ford modeling agency doing magazines, TV ads and catalogs. She met Christopher George while doing a photo shoot. They would soon be doing the movie The Gentle Rain. Her career continued with guest roles on many television series of the 1960s, including Route 66, Flipper, Here Come the Brides, The Green Hornet, Mannix, The Fugitive, The Invaders, It Takes a Thief, The Virginian, and Bonanza. She had her first major role as Amelia Cole in the television series, The Silent Force, and later starred in the television pilot for Cannon in 1971. She was then cast as Lisa Casey in the series Mission Impossible, getting a Golden Globe nomination in 1972 and an Emmy Award nomination in 1973.
While she did appear in the some theatrical films like Chisum, most of her work was on the small-screen. From mini-series such as Rich Man, Poor Man and Roots, to TV series like The Felony Squad, The F.B.I. and The Silent Force. The 1970s brought Lynda into our living rooms almost every week. Be it a series or a talk show or game show, she was there with a smile. In 1970 Lynda and Christopher married. Soon, they had their daughter Krisinda and with son Nick the family was complete. Lynda continued to make series and TV movies and eventually went into cult horror films with Christopher, including Day of the Animals (1977), Pieces (1982), and Mortuary (1983). She also co-starred in the 1980 Beyond Evil. Christopher died of a heart attack in November of 1983. She worked sporadically after that, in guest roles including Murder She Wrote and Blacke's Magic. Lynda also reprised the role of Lisa Casey on an episode of the revived Mission: Impossible television series in 1989. She started a relationship with Doug Cronin in 1985. They married in 1990 and she enjoyed staying home after decades of working constantly. Lynda and Doug spent their time together supporting charities, traveling to Washington State and just being together. When Doug passed in 2010, Lynda created a new life in Washington. Fundraising and supporting her favorite charities are regular activities for her. Lynda is excited to get back to working in front of the camera.