The Oscar winner is in talks to portray the super snoop's loyal employee Mrs. Hudson in a new show based on her journals, called A View From The Landing At 221B Baker Street.
The script has been penned by British comedy writer Barry Cryer and his son, Bob, and the pair is adamant the Bond actress is the perfect person for the job.
Cryer tells Britain's Daily Mail, "It's all at a very early stage but it would be brilliant if Dame Judi were to play Mrs. Hudson. She would be ideal."
The show is the latest update of the Sherlock Holmes tale - Robert Downey, Jr. played the private investigator in Guy Ritchie's two films, and Benedict Cumberbatch plays Holmes in hit BBC series Sherlock.