Indica Elizabeth Watson was born in London, England. Her father is a musician and her mother is a doctor. She is a member of a children's choir and plays the violin. Her debut television appearance was in the second series (2016) of The Missing (2014). In 2017 she played the young Eurus Holmes opposite Benedict Cumberbatch in the series 4 finale of Sherlock (2010). In 2018 she will be appearing in "Deep State" (2018) with Mark Strong and Joe Dempsie.