Stephen Sondheim’s musical Sweeney Todd: The Demon Barber of Fleet Street features a protagonist who can be viewed as a victim of England’s classism. In this study, Carl Jung’s theory of analytical psychology has been adopted to analyze Todd’s..., he cannot attain the Self, which is central to a balanced personality. In brief, psychologically, Sweeney Todd is a thinking and feeling introvert, a product of both causal motivation and regressive adaptation.