Mariana Klaveno grew up in a rural area of Washington State on the family owned and operated farm with her three older siblings. After graduating valedictorian of her high school class, she pursued her B.A. in Theatre at the University of Washington in Seattle. She trained there with John Jory, erstwhile Artistic Director of Actor's Theatre of Louisville. After graduating with honors, Mariana moved to Los Angeles and continued her training with noted acting coach, Cameron Thor.
After a chance meeting with acclaimed Producer/Director J. J. Abrams, he cast Mariana in "Alias", her network television debut. However, it wasn't until her standout guest performance as a modern day Bonnie Parker on 'Standoff' opposite Ron Livingston and Rosemarie DeWitt that people really began to stop and take notice. Guest star roles followed on 'ER', 'K-Ville', and 'Laws of Chance'. She also recently starred in the television movies 'Final Approach' and 'While the Children Sleep'. Mariana currently resides in Los Angeles.