Around the beginning of the 20th century the codes for representing masculinity in opera began to change. This essay focuses on how the changing codes of masculinity in leading male roles are calibrated differently for white European characters and nonwhite characters with non-European ancestry (for example, African American, Caribbean, Moorish, or African) and shows how masculinity and heroism are brought together differently for black and non-black characters. The first section examines Giuseppe Verdi's Otello (1887) and focuses on a critical moment near the end of the opera that links orchestral developments in Italy at the end of the 19th century with the way Verdi dramatizes Otello's vicious murder of Desdemona. A broader overview considers four operas written in the first half of the 20th century: Berg's Wozzeck (1925), Krenek's Jonny spielt auf (1927), Gershwin's Porgy and Bess (1935), and Britten's Peter Grimes (1945). Two of these operas (Wozzeck and Peter Grimes) feature white European title characters, while the other two feature African American protagonists.