Martines embarked on a remarkable journey in the world of dance, making her debut at a tender age as a performer at the esteemed Zurich Opera House in 1972. Following a stint in the United States, where she honed her craft with the renowned Chicago City Ballet, she relocated to Rome, where she took the stage at the illustrious Teatro dell'Opera.
As her career continued to flourish, Martines began a fruitful collaboration with RAI in 1985, initially appearing on the popular lunchtime chat/quiz show Pronto, chi gioca?. Her subsequent appearances on the Saturday Night shows Fantastico and Europa Europa catapulted her to widespread popularity, and her captivating portrayal of Princess Fantaghirò in the beloved Fantaghirò series solidified her status as a beloved television personality.
Beyond her impressive television credits, Martines has also made a significant impact in the world of cinema. Under the visionary direction of the renowned French filmmaker Claude Lelouch, she has delivered standout performances in a range of films, including the iconic Les Misérables and the critically acclaimed And now... Ladies and Gentlemen. Additionally, she has demonstrated her impressive range as a stage actress, delivering a memorable performance in the production of L'appartamento, penned by the acclaimed Franca Valeri.