Mario Mattei is a native of Puerto Rico and a graduate of the University of Puerto Rico, having studied drama there. As a student, he came into contact with director Dean Zayas, a pioneer and instrumental figure in the theatrical movement in Puerto Rico. A master of both the stage and the screen, Mattei openly prefers theater and considers it to be a demanding and challenging, though rewarding, vehicle for dramatic expression.
Mattei is a hallmark of Repertorio's company of actors, holding roles in productions like El Quijote and Crónica de una muerte anunciada, both directed by Jorge Alí Triana, La fiesta del chivo and Carmen Rivera's groundbreaking play La gringa which still continues to sell out theaters to this day.
On television, he has appeared in Homicide City (2018), Gotham (2018), New Amsterdam (2021), and The Equalizer (2022).
