Conan Doyle's detective is the famous Sherlock Holmes. He is a fictional character created by Sir Arthur Conan Doyle, and is one of the most iconic characters in literature. He is a brilliant detective who uses his powers of observation and deduction to solve difficult cases. He is also known for his use of disguises and his ability to think outside the box. He is an iconic figure in the world of crime fiction and has been featured in numerous films, television shows, and books.