Cornelius Slate (Keith Szarabajka) is a former soldier who dons a gold eyepatch over his missing left eye. He fought alongside Booker at the Battle of Wounded Knee before becoming a follower of Comstock and going on to lead Columbia's forces to lay waste to Peking during the Boxer Rebellion. Slate becomes disillusioned with Comstock's rule when he discovers that Comstock has claimed both Slate's and Booker's achievements in battle as his own, and organizes a rebellion of other disgruntled veterans against the city. After Booker defeats his followers, he demands that his old war buddy kill him rather than die at the hands of Comstock's "tin soldiers"; if Booker refuses, he is ultimately taken into custody and winds up wheelchair-bound, locked in a remote prison in a catatonic state (possibly by lobotomization). When Elizabeth opens a tear to another reality where Booker died fighting for the Vox Populi, it is revealed that Cornelius convinced him to join his rebellion, before being killed in a shootout with the Colombian army.