Odin is the king of Asgard and the Nordic god of wisdom, warfare, poetry, sacrifice and magic. He has a God Robe like the other God Warriors, but his Cosmo is presumed to be dramatically superior to theirs as their sovereign.

In Saint Seiya: Soul of Gold, Odin manifests himself through Lyfia's body, since she is the chosen one as the representative of the Asgardian people.
(Source: Seiyapedia)