Marzoli made her first public appearance in April 2012 on the
spanish dating show,
Mujeres y Hombres y Viceversa, where she worked for several years. In 2014, she participated in
Supervivientes (
Survivor), but left the competition. That same year, she joined the
chilean reality show
Amor a Prueba. In 2015, she participated in and was announced as the winner of
¿Voverías con tu Ex?. In 2017, while still living in Chile, she participated in
Doble Tentación. That same year, she returned to Spain to rejoin
Mujeres y Hombres y Viceversa. In 2018, she was introduced as a panelist on
Supervivientes: Tierra de Nadie (for six seasons, until 2023). Since 2018, she has worked as a commentator on various reality television programs in Spain. In 2020, she participated in
La Casa Fuerte, where she was a finalist. In 2022, she participated in the
seventh season of the
italian reality show
Grande Fratello VIP and, after 151 days of competition, was announced as the first runner-up. In 2023, she returned to Spain and participated again in
Supervivientes as a panelist. In September of that year, she participated in the
eighth season of
Gran Hermano VIP, but left the show two weeks later. In 2024, she returned to Chile to participate in the reality show
Ganar o Servir, which she won. In 2025 she was part of the
Mega program "
Sangre, Sudor y Gala," a docu-reality show that follows its participants' preparations for the red carpet of the
2025 Viña del Mar Festival. She participated in
Palabra de Honor. In May, she returned to Spain to film "
Inside Oriana," a documentary series about her own life, broadcast by
Mediaset Infinitty. In February 2026, she was announced as a resident of the
sixth season of
La casa de los famosos, a Spanish-language American program on
Telemundo filmed in
Mexico. == Personal life ==