In his mathematical inclinations, he was supported by Dr. G. R. Treviranus, who taught him the principles of spherical trigonometry.
Ludolph Christian Treviranus (1779 – 1864), German botanist, younger brother of G. R. Treviranus.
Having appeared briefly in Repo Man and Sid and Nancy, Sandoval has also played the major roles of Treviranus (in Death and the Compass) and Bennie Reyes (in Three Businessmen) for director Alex Cox.