Who is the creator of XXX?
Sherlock Holmes
Basil Rathbone played Holmes and Nigel Bruce played Watson in fourteen U.S. films (two for 20th Century Fox and a dozen for Universal Pictures) from 1939 to 1946, and in The New Adventures of Sherlock Holmes on the Mutual radio network from 1939 to 1946 (before the role of Holmes passed to Tom Conway).