Stranger Things due to her “old” age.The actor recalled her experience auditioning for the role in an interview with Fashion Magazine, where she said casting directors were initially hesitant because she was aged 14 at the time.“I just begged and pleaded with them to give me more material so I could show them something fresh,” Sink said. She insisted she was “right” for the part of Max, and was later given the role following a chemistry read with co-stars Gaten Matarazzo and Caleb McLaughlin.Max joined the Netflix series in season two, alongside her abusive older brother Billy (Dacre Mongomery).