Monica Santhiago, born Marcia Seferin on April 1, 1975, in Porto Alegre, Rio Grande do Sul, Brazil, is a renowned Brazilian adult film actress known for her voluptuous figure and performances in hardcore scenes, especially anal. Standing at 5'3" with measurements around 36D-25-39, she entered the industry at age 31 in 2006 after working as a kindergarten teacher and briefly as a call girl. Of Latin descent, she launched her official website in 2007 and formed partnerships with major studios. Nominated for AVN's Female Foreign Performer of the Year in 2010, she has remained active into the 2020s, appearing in numerous titles. Her distinctive barbed-wire tattoo and bubble butt have made her a fan favorite. With over 20 years in the business, Santhiago continues to produce content on platforms like ManyVids, blending her background in pedagogy with her bold on-screen persona. She remains one of Brazil's most prominent exports in international adult entertainment.