Juhani Otso Berg is the Master Templar who leads Sigma Team, Abstergo's strike force, in Assassin's Creed Syndicate's modern-day story. He arrives with Violet da Costa to save Isabelle Ardant from Shaun and Rebecca, and guards the Templars at the Shroud's vault.
Berg and Violet are about to execute Shaun and Rebecca when an explosion lets the Assassins escape with a leap of faith.
Berg fights Galina, breaks her Hidden Blades and tells Violet to finish the job, but Galina knocks him out. Sigma Team arrives just as she is about to kill him, and the Assassins leave him unconscious. Afterwards he delivers a Precursor box to Gramática's secret lab.
Syndicate's intel reports describe the damage from Berg's use of the Shay Cormac footage as bait: the Assassins scrambled, he watched where they ran, and their agent in Montreal was killed. By 2015 the Assassins' military contacts had been moved or discharged, their rich backers audited and their academic allies squeezed, so William Miles ordered the Rooftop Garden Protocol to cut all unneeded communications.
Agnes MacBean
Agnes MacBean is the Scottish engineer who owns the train the Frye twins use as their moving hideout. She comes with it after the Whitechapel gang war, keeps it running and improving, and sets up the Train Hideout side stories.
Alexander Graham Bell
Alexander Graham Bell is the twins' inventor in Syndicate. He turns a broken grappling pistol into the rope launcher, adds hallucinogenic darts to their gauntlets and builds voltaic bombs, all while fighting Starrick's grip on the telegraph.
Arthur Conan Doyle
Arthur Conan Doyle appears as Artie, a schoolboy and penny dreadful fan who teams up with Henry Raymond and the Frye twins to solve the murder cases of The Dreadful Crimes.
Arthur Weaversbrook
Arthur Weaversbrook is the Fleet Street newspaper owner whose papers made Jack the Ripper famous. In the 1888 expansion he becomes Evie's main contact for side work: the Ripper letters, the lieutenant hits and the Rooks' smuggling cargo.