judelaw Dr. John Watson portrayer Costar of Robert Downey, Jr. in the Sherlock Holmes films: 2 wds "Sleuth" costar "Cold Mountain" star "Alfie" actor who played Dr. Watson in the movie "Sherlock Holmes": 2 wds 'Gattaca' actor 'Cold Mountain' actor Errol Flynn portrayer in "The Aviator" Dr. Watson player in 2009's "Sherlock Holmes" People's Sexiest Man Alive of 2004 He plays Dr. John Watson John Watson's portrayer opposite Robert Downey Jr.'s Sherlock Holmes Dumbledore in "Fantastic Beasts" (2018)