Odin the Wanderer is one of the main personas of the Allfather in Norse mythology, under which he travels around the Nine Realms in seek of wisdom. He serves as the key inspiration for Tolkien’s Gandalf. “He has sent me some illustrations (of the Trolls and Gollum) which despite certain merits, such as one would expect of a German, are I fear too 'Disnified' for my taste: Bilbo with a dribbling nose, and Gandalf as a figure of vulgar fun rather than the Odinic wanderer that I think of.” - Letter

Norse Gods Knew They Would Lose the Final Battle. They Showed Up Anyway

Odin's Mythical Ravens - Huginn and Muninn (Norse Mythology Explained)