Erin is sweet, cheerful, and naturally amiable to others. Compared to her more loose crew members, she is rather polite and rarely uses profanity. She stands out for her shyness, often preferring to remain quiet and retreat from problems into her own world. Though when needed, she will speak up, which she does when she is told what happened in the blackout room wasn't real. She can also, on the contrary, show a vengeful side and display hostility towards people who betrayed her trust.