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.
Queen of Hearts (Alice's Adventures in Wonderland)
In the manga "Alice in the Country of Hearts", the Queen of Hearts is known as Vivaldi. She isn't as much a main character, though, and she has very few parts in the current books. Vivaldi rules Heart Castle and is feuding with the other territories over Wonderland. She is beautiful with black hair, unlike other adaptations. She speaks in the majestic plural, I.E, "We are happy you are here to see us." As discovered through Heart no Kuni no Alice the game by Quinrose (the predecessor to the manga) Blood Dupree (The Hatter) is Vivaldi's little brother though it is alluded to be a romantic interest for Vivaldi until Alice discovers the secret.