The British Assassins Ethan and Cecily Frye resided in the town and conducted their Assassin activities there due to the Brotherhood's inability to establish a stable base in London, which had been under the control of the Templars since the death of Miko in 1754. Ethan would later save George Westhouse from robbers in Crawley's riverbank and would induct him in the Brotherhood.
Much later in 1847, Ethan and Cecily's children, Jacob and Evie Frye, who would later also became Assassins, were born and raised in the town. As Evie trained with their father, Jacob would explore Crawley's gambling dens and factories. After Ethan's death in 1868, George Westhouse served as their guardian and coordinated assassinations in the nearby town of Croydon.
- Assassin's Creed: Syndicate (mentioned only)