SPARTAN-K117, known as Viking, is a member of the 117th Special Operations Regiment, and leader of Forth Battalion, Kilo Company, Einherjar Platoon, Forseti Squad. Born on the harsh arctic world of Asgard, Sigurd was raised by his parents and sister in their small cabin in the Asgardian wilderness. His father, a Human-Covenant War veteran, Sergeant of the Asgard Patrol, and his mother, an former ONI agent, moved to Asgard after the war had ended. After settling in and having their child, they raised him to be a survivalist, which was necessary in Asgard. His father taught him the skills to hunt, create a fire from basic environmental objects, and a shelter. His mother taught him to fish as well as clean and cook food when in the wilds.