Dr. Jekyll is a fictional character from the novella "Strange Case of Dr Jekyll and Mr Hyde," written by Robert Louis Stevenson. He is a well-respected scientist and physician in Victorian London, known for his intelligence and social standing. Dr. Jekyll is fascinated by the duality of human nature and seeks to explore the darker side of his personality. To achieve this, he creates a potion that transforms him into Mr. Hyde, a violent and immoral alter ego. This transformation allows Dr. Jekyll to indulge in his repressed desires without facing societal consequences. However, the experiment ultimately leads to tragic consequences, highlighting the struggle between good and evil within a single individual.