Sherlock Holmes is the most portrayed literary human character in film and television history, having appeared on screen 254 times as of 2012.
[1] Additionally, many actors have portrayed Sherlock Holmes in audio dramas and stage productions.
A small number of actors have played both Holmes and Watson, including Reginald Owen who played Watson in Sherlock Holmes (1932) and Holmes in A Study in Scarlet (1933);[95][96] Jeremy Brett, who played Watson on stage in the United States prior to adopting the mantle of Holmes on British television;[97] Howard Marion-Crawford, who played Holmes on British radio and Watson on American television; Carleton Hobbs, who played both roles in British radio adaptations;[98] Patrick Macnee, who played both roles in American television movies;[99] and Anthony D.P.
Mann who played Holmes in Sherlock Holmes and the Shadow Watchers (2011) and Watson in the 2017 Bleak December audio adaptation of The Hound of the Baskervilles.