Annie Edison is a repressed, straight-laced, Jewish eighteen-year-old who is in her first year at Greendale Community College. She lost her college scholarship and dropped out of high school due to an addiction to Adderall. Though younger than most of the group, she is also by far the most studious. She has a talent for making the other study group members feel guilty and takes backpack selection seriously. A noticeably cheerful person, she is enthusiastic when it comes to helping out the school, both writing for the school paper and participating on the debate team, along with organizing school events. She also takes the cohesion of the study group more seriously than the other members and, in trying to get the group to retake Spanish 102, gets Senor Chang fired for his fake degree.
She used to study obsessively and pine after Troy, on whom she had a crush since high school but stops when she begins dating another student, Vaughn. While she initially intends to transfer from Greendale and join Vaughn in Delaware, she decides to stay for the second year. At the end of the first season, it appears as if she has developed a romantic dynamic with Jeff, whom she kissed both to win a debate competition and at the end of the season. While she is interested in Jeff at the beginning of the second season, she then thinks of him as gross after the study group learns about Jeff and Britta's paintball episode.