Famous for her starring roles in the Argentine television shows Sweethearts, You Are the One, Lalola, and Guapas, she is also notable for her recurring roles in Los Exitosos Pells and Tiempos Compulsivos.
Before launching her screen acting career, she performed with Mariana Prommel and Claudia Fontan in a stage production of Quien es Janet?
She earned Martin Fierro awards for her work in both Lalola and Sos Mi Vida.
She spent her youth in Cordoba, Argentina. In 2007, Argentine President Cristina Fernandez de Kirchner appointed Peterson's husband, Martin Lousteau, to the office of Minister of Economy and Production.
She and Luisana Lopilato both appear in the 2014 comedy movie Las Insoladas.