Flaco is one of the characters in the film, School Dance, Oscar's son, Junior and Anastacia's brother, and El Matador's second cousin. He is portrayed by Wilmer Valderrama.
Flaco is the leader of the clique The Esès, who are the real gangsters at the Monte Vista High School. Flaco is also a overprotective brother to Anastacia and doesn't even allow people to even talk to her in a wrong way. Flaco can usually be seen with El Matador and the rest of The Esès for the rest of the film. Flaco also has a habit of punching people in the stomach of who disrespect him or even Anastacia. Flaco also tries to accept Anastacia dating Jason at the end of the film.