Final answer:
The character Rhett Butler was created by Margaret Mitchell in her novel Gone with the Wind.
Step-by-step explanation:
The character Rhett Butler was created by Margaret Mitchell for her novel Gone with the Wind, which was published in 1936. Mitchell's work is renowned for its vivid portrayal of the American South during and after the Civil War. Rhett Butler is one of the central characters in this historical romance, a complex and cunning man who is both a romantic interest and a foil to the novel's protagonist, Scarlett O'Hara.