The horror fandom is one of the most dedicated and passionate cultural communities in existence, with countless conventions, festivals, and celebrations happening year-round — all connected by the mutual appreciation for frightful films. Some may go so far as to call the horror fandom a "family," but in the case of two of horror's most promising young actors, that description is literal. Madeleine and Violet McGraw are both still in their adolescent years, but have given performances in...