Monica Santhiago, born Marcia Seferin on April 1, 1975, in Porto Alegre, Rio Grande do Sul, Brazil, is a renowned Brazilian pornographic actress. Of Latin descent and standing at 5'3", she attended the Pontifical Catholic University of Rio Grande do Sul, majoring in Pedagogy and Psychopedagogy. Before her adult career, she worked as a kindergarten teacher for eight years.
After losing that job, she briefly worked as a call girl. Discovered by porn actor Don Picone, Santhiago entered the industry in 2006 at age 31. She quickly gained fame for her voluptuous figure, expertise in hardcore and anal scenes, and enthusiastic performances.
Nominated for the 2010 AVN Award for Female Foreign Performer of the Year, she has appeared in numerous films for Brazilian and international studios. Known for her barbed-wire tattoo on her left buttock, Santhiago has remained active into the mid-2020s, amassing a significant following for her MILF appeal and passionate work.