This article explores transnational dialogues between peoples of colour in Brazil, Spanish-speaking South America, Haiti, and North America on issues relating to revolution, abolitionism, diplomacy and civil rights in the nineteenth century. By focusing on Emiliano Felipe Benício Mundrucu (1791 1863), a Brazilian pardo who travelled and lived in Brazil, Venezuela, Haiti and the United States, this paper discusses the unique socioeconomic , racial, and political perspectives that educated, polyglot and unusually well-travelled peoples of colour brought to debates on abolition, civil rights and broader hemispheric-wide questions of black identity in this period. It also explores their involvement in transnational revolutionary activity in the early nineteenth century, discussing how Mundrucu, along with other Brazilian secessionists, solicited the help of the young, radical republics of Haiti and Gran Colombia to challenge the Brazilian monarchy in Rio de Janeiro and establish a federalist republic in the north east of the country.