Anna Milton

Anna Milton was an angel of God who defied orders and fell to earth. Her grace was separated from her and was then relocated to Kansas in the form of a Oak tree. Later on she was able to take back her grace from Uriel and was able to save Uriel, Castiel, Ruby, Sam, and Dean from Alastair. It is unknown if Alastair is still alive. But Anna was able to redeem herself and is now an angel of God once more. She returns briefly to help Castiel eliminate Uriel.

Appearances

 * "I Know What You Did Last Summer"
 * "Heaven and Hell"
 * "On the Head of a Pin"
 * "When the Levee Breaks"