Odin

A shape-shifter Odin was said to be able to take the form of any God or creature he so desired. Odin is also known as the All-Father due to his infinite wisdom, which he just so happens to top up by drinking his 'mead of inspiration'.

Odin was the king of all the Norse gods; along with all of his descendants Odin was continuously involved in endless battles with the frost giants. Married to the goddess Frigg they had two sons, Balder (beautiful god) and the legendary Thor (God of thunder).

In his desperation to learn knowledge Odin hung himself upside down from the great tree Yggdrasil, the Tree of Life or the World Tree. After nine nights and days or pain he learnt all of the universe's mysteries which he then passed on to the Viking people.

(Image sourced from: http://fanzone50.com/Tales/Nordic-Anfang.html)