|align=center

}}

'''Sebastian Yarrick''' (known as '''The Old Man''' by the people of [[Armageddon]]{{Fn|4}}) is an [[Imperial Guard]] [[Commissar]] famous for his participation in the [[Second War for Armageddon|Second]] and [[Third War for Armageddon|Third]] Wars for [[Armageddon]], in which he twice fought against the [[Ork]] forces of [[Warboss|Warlord]] [[Ghazghkull Mag Uruk Thraka]]. His leadership and bravery during these conflicts have made him one of the greatest heroes of the [[Imperium]].{{Fn|1a}}