Charles Marlow
Marlow's name may be inspired by the Elizabethan playwright Christopher Marlowe. Conrad's father was a translator of William Shakespeare who doubtless would have known of Marlowe's work as well. Some intertextual interpretations of "Heart of Darkness" have suggested that Marlowe's "The Tragical History of Doctor Faustus" may have influenced Conrad. Charles Marlow describes a character as a "papier-mache Mephistopheles", a reference to the Faust legend. Marlow's and Kurtz's journey up the Congo River in "Heart of Darkness" also has similarities to another work by Marlowe, "Dido, Queen of Carthage", in which Aeneas is stranded on the shore of Libya and meets the African queen Dido.
Roger Casement
In 1890 Casement met Joseph Conrad, who had come to the Congo to pilot a merchant ship, "Le Roi des Belges". Both had come inspired by the idea that "European colonisation would bring moral and social progress to the continent and free its inhabitants 'from slavery, paganism and other barbarities.' Each would soon learn the gravity of his error." Conrad published his short novel, "Heart of Darkness", in 1899. Casement would later take on a different kind of writing to expose the conditions he found in the Congo during his official investigation for the British government. In these formative years, he also met Herbert Ward, and they became longtime friends. Ward left Africa in 1889, and devoted his time to becoming an artist, but his experience there strongly influenced his work.