Landen was born in Boulder, Colorado, in the year 1965. She was brought up in Colombia, South Carolina by her mother Dorothy and stepfather. He taught Psychology at the University of South Carolina. She grew up with her half-sisters.
As a child, she dreamed of being an actress. Her interest was sparked when she appeared in a play titled Snow White and the Seven Dwarfs at the age of 9. She graduated from A.C. Flora High School in 1983. Later, she earned her BFA Degree in Acting from the University of Rutgers.
While in her 20s, Landen studied and taught Yoga. This explains Kristin Davis hot looks that still dazzle everyone to date, despite her age.
