Santiago is a member of the Volturi guard, and one of few members without possession of supernatural capabilities. Instead his useful skills come from his superior physical strength and battle techniques.
Santiago had been with the Volturi for an uncertain amount of time, acting as one of their executors and warriors, similar to Felix's position.
In Breaking Dawn, when Irina reports to the Volturi about an immortal child being created by the Cullen family, the entire coven travels to Forks to destroy them; Santiago is among them during the confrontation. Throughout the entire confrontation, he remains in the shadows, waiting for the opportunity to attack the Cullens with the rest of his coven. After the situation was resolved peacefully, he retreats to Volterra with the coven.
In Breaking Dawn - Part 2, Santiago personally escorts Irina to the Volturi leaders' chamber. In the clearing, when Irina's allegiance was proven false, Santiago and Felix dismember her body under Caius's orders.
In Alice's vision of the probably battle, Caius orders Santiago to hunt down Renesmee and Jacob, who run across the forest to escape their slaughter. He quickly catches up to them, but is killed by Jacob when he bites off his head and escapes with Renesmee. Since the battle is avoided, Santiago's death is prevented.
Other than he was brawny and huge-looking, Santiago's physique was never described in the books.
In the movie, however, he displays a bulky body shape with dark-colored skin, with Brazilian/Mexican facial features, and black dreadlocks that run down to his neck, though he wears it up. Since he drinks human blood for a living, his eyes exert the traditional red color of human-feeding vampires that darken the longer he abstains from feeding.
He wears the traditional black and gray outfit of the Volturi's guards, and has pierced ears.
Powers and abilities
Similarly to Felix, he is not supernaturally gifted but rather possesses tremendous physical strength and combat skills that surpass regular vampires. Though he is not quite as skilled as Felix, he is not to be underestimated.
In the movie he is shown to be a very fast vampire; he quickly catches up to Jacob and Renesmee whilst chasing them across the forest despite the two of them having a headstart.
|Leaders||Aro • Caius • Marcus|
|Wives||Athenodora • Didyme • Sulpicia|
|Guard||Afton • Alec • Chelsea • Corin • Demetri • Felix • Heidi • Jane • Renata • Santiago|
|Other||Bianca • Eleazar • Gianna • Valentina|