“The Transgressive Stage: The Culture of Public Entertainment in Late Victorian Toronto,” argues that public entertainment was one of the most important sites for the negotiation of identities in late Victorian Toronto. From the vantage point of the twenty-first century, where theatre is strictly highbrow, it is difficult to appreciate the centrality of public entertainment to everyday life in the nineteenth century. Simply put, the Victorian imagination was populated by melodrama and minstrelsy, Shakespeare and circuses. Studying the responses to these entertainments, greatly expands our understanding of Victorian culture. The central argument of this dissertation is that public entertainment spilled over the threshold of the playhouse and circus tent to influence the wider world. In so doing, it radically altered the urban streetscape, interacted with political ideology, promoted trends in consumption, as well as exposed audiences to new intellectual currents about art and beauty. Specifically, this study examines the moral panic surrounding indecent theatrical advertisements; the use by political playwrights of tropes from public entertainment as a vehicle for political satire; the role of the stage in providing an outlet for Toronto’s racial curiosity; the centrality of commercial amusements in defining the boundaries of gender; and, finally, the importance of the theatre—particularly through the Aesthetic Movement—in attempts to control the city’s working class. When Torontonians took in a play, they were also exposing themselves to one of the most significant transnational forces of the nineteenth century. British and American shows, which made up the bulk of what was on offer in the city, brought with them British and American perspectives. The latest plays from London and New York made their way to the city within months, and sometimes weeks, of their first production. These entertainments introduced audiences to the latest thoughts, fashion, slang and trends. They also confronted playgoers with issues that might, on the surface seem foreign and irrelevant. Nevertheless, they quickly adapted to the environment north of the border. Public entertainment in Toronto came to embody a hybridized culture with a promiscuous co-mingling of high and low and of British and American influences.