Junko's personality, is very apathetic and easily bored to an unhealthy and abnormal degree. Because of this, her behavior and mannerisms tended to be extremely erratic and unstable by her own autonomous design; keeping up one "appearance" for too long bores her, which causes her to often switch between her aforementioned different personas. She switched between these personas regularly, often imitating other students' expressions, which made for a highly unsettling conversation with the survivors. Her voice will either have a different tone or accent within the switches, such as "haughty superiority" giving her a voice similar to a stereotypical British monarch, her "sickening cuteness" giving her a higher pitched voice, her "clinical sophistication" giving her a more mature or deeper voice, making her speak as if she was, as her appearance suggests, a teacher/professor, her "severe depression" giving her a more sad voice, as if she was on the verge of crying, her "eerie stoicism" giving her a monotone voice, her "boisterous vulgarity" sounding similar to a stereotypical rockstar, and her Monokuma one mimicking his voice. While entering the Hope's Peak Academy as one of Class 78's students, she often talked as if narrating a story, writing down her thoughts in a notebook.

(Side note:The voice doesn't have to be the anime voice.)