However, the leading roles she is mostly remembered for were, 1973's El Hijo de Angela María, alongside Rolando Barral, Mona Marti, Ángela Meyer, and Lucy Boscana, among others.
This performance led her to carry out the same leading role, Marisela Perdomo, in the film based on the telenovela, in Mexico, opposite Iranian-Mexican actress Irán Eory.
Her crossover as a singer/actress was in 1978's Cristina Bazán,[1] opposite José Luis Rodríguez "El Puma", and alongside Alba Nydia Díaz, Esther Sandoval, and Adamari López, at the early age of 6, among others.
For each one she sang the musical theme, namely “Yo Soy Un Barco” (composed by [[Lou Briel), “Amándote” and “El Amor Nuestro de Cada Día”, respectively.
Since the 1990s, she has devoted herself mostly to the stage, to critical acclaim for works such as Master Class, “Punto y Coma” (W;t), “Buenas Noches, Mamá (“‘Night, Mother”, “Relaciones Peligrosas” (Liaisons Dangereuses), among many others.
Rosaly and New York-based actress Eva Cristina Vásquez starred in this play by Alberto Adellach, " a tale of two very different mentally ill women who escape an asylum.
[4] During the 2018 California wildfires, Rosaly was at the residence of her son, film director José Gilberto Molinari, and her daughter in law as well as her two-month old grandchild in Agoura Hills.