Sergeant Whiskeyjack was a member of the Old Guard. His real name was Iskar Jarak and he was a mason before becoming a soldier. He also had a sister, Dunsparrow, who was last seen escaping from Y'Ghatan with Leoman of the Flails in The Bonehunters. He commanded utter loyalty from his soldiers and respect from his enemies. Post the events of Gardens of the Moon, Whiskeyjack struck up a good rapport with Anomander Rake and it was mentioned in passing how they both were more alike than different.