Dr. Henry Jekyll is a fictional character from the novella "Strange Case of Dr Jekyll and Mr Hyde" by Robert Louis Stevenson. He is a well-respected scientist and physician in Victorian London, known for his intelligence and social standing. Jekyll is deeply interested in the duality of human nature and experiments with the idea of separating the good and evil aspects of himself. Through his experiments, Jekyll creates a potion that transforms him into Mr. Hyde, a violent and immoral alter ego. This transformation allows him to explore his darker impulses without the constraints of societal expectations. However, the consequences of his actions lead to tragic outcomes, highlighting the struggle between good and evil within individuals.