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 doctor 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 the consequences. However, the struggle between his two identities ultimately leads to tragic results.