Warner Bros. has reportedly added a number of acclaimed scribes to its Sherlock Holmes 3 writers' room, including writers from Guardians of the Galaxy and Rogue One: A Star Wars Story. As Variety reports, the next installment in the Robert Downey Jr.-led series will be tackled by five writers: Nicole Perlman (Guardians of the Galaxy, Captain Marvel), Gary Whitta (Rogue One), Justin Malen (Baywatch), Geneva Robertson-Dworet (Tomb Raider), and Kieran Fitzgerald (Snowden). James Coyne was brought on to rewrite the script back in April.