Jayadeep Mir (1843 – unknown), known as "the Ghost" and more commonly as Sir Henry Green, was an Indian immigrant in London during the 1860s, who became the leader of the Assassins in the city and a friend of the twins Jacob and Evie Frye.

Green was the son of Arbaaz Mir, a Kashmiri Master Assassin of the Indian Brotherhood, and Princess Pyara Kaur of the Sikh Empire, being through her, the grandson of the Maharaja Kharak Singh and the great-grandson of the Maharaja Ranjit Singh. He was also the great-nephew, and an associate, of Duleep Singh, the last Maharaja of the Sikh Empire also exiled in London during the Victorian era.