Their ancestors were Indians, Spaniards, French and German. At one year she moved with her family to the United States, to Los Angeles. Thus she is fluent in Spanish and English.
Limon has played in numerous TV commercials with, both in Spanish and English. Among other things, they shot commercials for Toyota and Dr Pepper. She began her acting career in 1995 with a guest role in an episode of ER. There were other small roles in various TV series. She got her first major role in 1999 by MTV's Undressed - Who with whom? offered, where she appeared in three episodes as Cindy. The best known, however, it was her role as Willow's girlfriend Kennedy on Buffy - The Vampire Slayer.
Limon outed himself in an interview with the website AfterEllen.com in April 2006 as bisexual, in which she declared that she was once married and met at the time of the interview with DJ Sandra Edge. In September 2007 AfterEllen.com reported that Limon and Edges was relationship to an end and that Limon was pregnant by her new husband Alejandro. Her daughter was born in August 2007.