Iapetos
From Warhammer 40k - Lexicanum
Iapetos was the Sergeant of the Iron Snakes' Platonos Squad, when it was among the Chapter's forces that took part in the Sabbat Worlds Crusade.[1a]
History
He had a hunter's cunning, which aided Platonos when it was later among the Iron Snakes' squadrons, that fought to reclaim Urdesh from the Sons of Sek.[1b]