Wolf High Priest of the Space Wolves.
Ulrik the Slayer, also known as Grandfather Lupus and the Guardian of the Sons of Russ is the Wolf High Priest of the Space Wolves Space Marine Chapter and is the oldest of all the Space Wolves other than the Chapter’s Dreadnoughts. His great mane is white as the slopes of Asaheim on the Space Wolves’ Chapter homeworld of Fenris. Ulrik is older even than the mighty Logan Grimnar, the Great Wolf of the Chapter, who has fought in the name of the Emperor for over 700 Terran years.