George Edward Challenger is a fictional character in a series of fantasy and science fiction stories by Sir Arthur Conan Doyle. Unlike Doyle's self-controlled, analytical character, Sherlock Holmes, Professor Challenger is an aggressive, hot-tempered, dominating figure.

Sir Arthur Ignatius Conan Doyle was a British writer and physician. He created the character Sherlock Holmes in 1887 for A Study in Scarlet, the first of four novels and fifty-six short stories about Holmes and Dr. Watson. The Sherlock Holmes stories are milestones in the field of crime fiction.