Nicholas Alexander Chavez says his final callback audition to play Lyle Menendez in Ryan Murphy and Ian Brennan’s “Monsters: The Lyle and Erik Menendez Story” was not like others he had ever been on.

The 25-year-old tells PEOPLE he was "trying to mentally prepare as best as I could" for 'Monsters' and 'Grotesquerie' to release within a week of each other

When Nicholas Alexander Chavez began researching his role as Lyle Menéndez for Monsters, he paid special attention to the “mask” that Lyle’s dad Jose forced him to use when he began losing his hair.