Supernatural + Wizard of OZ

[daylight_darknight]

I was rewatching Tin Man and I think I've finally got it...

Dean is Dorothy
Sam is Toto
Bobby is Uncle Henry
Ellen is Aunty Em
Jo (or maybe Anna) is the Good Witch of the North
Castiel is the Scarecrow
Gabriel is the Tin Man
Balthazar is the Cowardly Lion
Azazel is the Wicked Witch of the East
Lucifer is the Wicked Witch of the West
Chuck/God is the Wizard

Oh, and the Impala is the ruby slippers