Marnò's life began in Los Angeles, where she would eventually set the stage for a remarkable journey.
She spent her formative years at Phillips Academy in Andover, Massachusetts, a prestigious boarding school that laid the foundation for her future pursuits.
As she matured, Marnò pursued a Bachelor of Arts in Comparative Literature from Barnard College, Columbia University, where she honed her linguistic skills and broadened her intellectual horizons.
Her academic achievements were merely the beginning, as she went on to earn a Master of Fine Arts in Acting from the esteemed Yale School of Drama.
To further refine her craft, Marnò received additional training at the Guthrie Theater in Minnesota and the Public Theater's Shakespeare Lab in New York, where she immersed herself in the world of classical theater.
Marnò's versatility as a performer was showcased in the one-woman show "Nine Parts of Desire," which earned her rave reviews as she portrayed nine distinct Middle Eastern women. The production ran at the Berkeley Repertory Theatre and the Geffen Playhouse in Los Angeles, solidifying her reputation as a talented and nuanced actress.
Throughout her life, Marnò has been drawn to international experiences, having resided in France, Germany, Sweden, and Argentina. Her linguistic skills are equally impressive, as she is fluent in English, French, German, Farsi, and Spanish.
As a playwright, Marnò has made a name for herself with her debut play, "When the Lights Went Out," which premiered at New York Stage & Film and starred Laura Innes, directed by Kate Whoriskey.
In addition to her stage work, Marnò has lent her voice to the video game Elder Scrolls V: Skyrim, bringing characters Mirabelle Ervine and Namira to life.