Benicio del Toro was born on February 19, 1967, in San German, Puerto Rico, to Gustavo Adolfo del Toro Bermudez and Fausta Genoveva Sanchez Rivera (daughter of Benicio Sanchez Castano and Lirio Belen Rivera), who were both lawyers. Many of del Toro's relatives are involved in Puerto Rico's legal system. He has an older brother, Gustavo, who is the Executive Vice President and Chief Medical Officer at the Wyckoff Heights Medical Center in the Bushwick section of Brooklyn, New York. He had a Catalan paternal great-grandfather and a Basque maternal great-grandmother. Del Toro is related to Puerto Rican basketball player Carlos Arroyo, Spanish pop-eurodance singer Rebeca Pous Del Toro, whose maternal grandfather was Puerto Rican, and Puerto Rican singer Eliseo Del Toro. He spent most of his infancy in Santurce, a barrio within San Juan. Del Toro, whose childhood nicknames were "Skinny Benny" and "Beno", was raised a Roman Catholic and attended Academia del Perpetuo Socorro (The Academy of Our Lady of Perpetual Help), a Roman Catholic school in Miramar, Puerto Rico. When del Toro was nine years old, his mother died of hepatitis. At age 15, he moved with his father and brother to Mercersburg, Pennsylvania, where he was enrolled at the Mercersburg Academy. He spent his adolescence and attended high school there. After graduation, del Toro followed the advice of his father and pursued a business degree at the University of California, San Diego. Success in an elective drama course encouraged him to drop out of college and study with noted acting teachers Stella Adler and Arthur Mendoza, in Los Angeles, as well as at the Circle in the Square Theatre School in New York City.

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