Odin

Odin  was the was the chief pagan deity of the Norse pantheon. While on Earth he took the form of an elderly American man in a bomber jacket and a strong Midwest accent.

Powers and Abilities
As a deity, Odin possessed several abilities common to his kind, however as the head god of his pantheon, he was presumably very powerful, more so than most pagan gods.
 * Immortality  - As a god, Odin was not subject to old age or natural death.


 * Invulnerability - Odin was immune to conventional weapons. Only higher beings such as God, Death, archangels, and other deities could kill him.


 * Super Strength - Odin possessed superhuman strength, though he was powerless against archangels.

Season 5
Odin was one of the gods who met with the other deities, to try to work out a way to stop the Apocalypse. He was of a laid back disposition towards the whole thing, believing it to be a "slap fight between a couple of angels".

This casual arrogance cost him his life when Lucifer killed him in the Elysian Fields Hotel hallway, presumably in a violent manner. ("Hammer of the Gods")

In Lore
He is the head of the Norse Pantheon.

Wednesday is named after him(Wodan).

To drink from the Well of Wisdom, Odin had to sacrifice his eye (which eye he sacrificed is unclear), symbolizing his willingness to gain the knowledge of the past, present and future. As he drank, he saw all the sorrows and troubles that would fall upon men and the gods. He also saw why the sorrow and troubles had to come to men.

On the day of the final battle ie, Ragnarok, Odin will be killed by the Loki's monstrous wolf-son Fenrir.

Trivia

 * Odin is the first head god to appear in the series
 * As God of Magic, War and Death, its possible he has some powers along those lines which he never got a chance to demonstrate.
 * It is unknown why he or Baldur did not see through Gabriel's disguise; it is possible that Gabriel had the ability to change their perception.

Appearances

 * Season 5
 * Hammer of the Gods