Sir Jacob Frye (born 1847) was a Master Assassin of the British Brotherhood, active in London during the Victorian era, and the younger twin brother of Evie Frye. Alongside Evie, Jacob led the Rooks, a criminal syndicate opposing the Templar-backed Blighters. Jacob assassinated various prominent Templars to destroy Grand Master Crawford Starrick's influence within the city. One of his initiates was a young boy from the Lambeth Asylum Jack who later was known to be Jack the Ripper. 