In Assassin's Creed Syndicate, Jacob Frye becomes the playable leader of London's Rooks.
Jacob and his twin sister Evie are Assassin protagonists in Victorian London. Jacob forms the Rooks, a street gang that helps him fight the Templar-controlled Blighters and expand Assassin influence across the city. The Rooks support activities such as territory control, gang operations, and resistance against enemy forces.
Evie has her own missions and often focuses on stealth, investigation, and locating powerful pieces of Isu technology. Jacob is more associated with direct combat, gang leadership, and the effort to take London's criminal underworld away from the Templars.
Henry Green is an Assassin mentor and ally, while Maxwell Roth leads the Blighters before his relationship with Jacob changes. Evie is the other playable twin, but she does not lead the Rooks; that role belongs specifically to Jacob.