Strong was born in Brightwood, Oregon, and grew up near Portland, Oregon. She graduated in 1978 from Sandy Union High School in Sandy, Oregon. Later, she graduated from Arizona State University with a Bachelor of Music in musical theater. Strong was crowned Miss Arizona in 1980.

A certified yoga instructor and fertility expert, Strong has experience teaching at UCLA's Mind/Body Institute. She is working on a book about yoga and the woman's journey.

She has one child, Zakery Henri, with estranged husband Tom Henri. She filed for divorce on January 14, 2011.

Dallas - Ann Ryland Ewing (2012)
Desperate Housewives - Mary Alice Young (2004-2012)
Everwood - Julia Brown (2002-2005)
Seinfeld - Sue Ellen (1996-1997)
Starship Troopers - Captain Deladier (1997)

Outstanding Performance by an Ensemble in a Comedy Series - "Desperate Housewives."
Screen Actors Guild Award (2006)
Outstanding Performance by an Ensemble in a Comedy Series - "Desperate Housewives."
Screen Actors Guild Award (2005)