Agbaje had to play both Chloe's normal character and her character while being possessed by the Isolus, which Agbaje felt was "weird". When performing as the Isolus she had to whisper, and an echo was added in post-production.
Agbaje had to portray both Chloe's typical persona and her Isolus form, which Agbaje found "unusual". When portraying the Isolus, she needed to whisper, and an echo was added in post-production.