The Giant Turtle
In Pratchett's fictional creation Discworld there exists a Giant Star Turtle, who travels through the universe with four giant elephants on top of it. These elephants then carry the Discworld, which therefore makes the turtle an important part of the series.
Rincewind
Rincewind is the protagonist of the novel, and he is a frustrated and unskilled wizard. He is later hired as a guide to help Twoflower, encountering danger and chaos on his journey.
Twoflower
Twoflower is a largely naive insurance clerk from the Agatean Empire, who hires Rincewind to protect him.
The Patrician of Ankh-Morpork
The Patrician of Ankh-Moroprk stops Rincewind from running away with Twoflower's money. This is because it is in the best interests of the Patrician for Twoflower to be defended, as it otherwise might create animosity between the Agatean Empire and Ankh-Morpork.
