Who Are You?
Interviews are becoming less and less common among colleges as part of the college selection process. Then who requires an interview? Colleges who view a candidate holistically are especially interested in the interview process as part of admissions.
For a quick list, most Ivy's and first tier schools will require an interview, others may leave it as optional or not offer an interview at all. You need to read the admissions requirements and procedures carefully since, if an interview is required, there are deadlines for scheduling.
Who will your interviewer be? It varies greatly from school to school:
a. If you live far away from the college you are applying to, it may be an alumni of that school from your area who does regional interviews.
b. If you interview on campus, it may be an admissions aid who has been specially trained.
c. It might be a "new be" admissions person
d. Less often, a senior admissions officer.
I titled this response, "Who Are You?" for a reason. Since the purpose of the interview is to explore and get answers from each other, you as the interviewee may find yourself conducting this interview. So have your personality ready and your personal questions prepared.