She was once Metatron's friend but stopped being so after the fall of the angels. Sometime after, Rebecca decided to stay out of angelic conflict and opted instead to live humbly among humans. She won the sympathy of many other angels, who were collectively called the 'penitents'. Although vowing to reject violence and not being a threat to any of the warring factions, Rebecca and her allies were ultimately wiped out by Bartholomew's faction.
Later, Castiel visited her grave, telling her he was sorry for causing all that chaos and for not being able to do anything for help. He also said although she had lost the war, she experienced a new way and that she had his respect for that.
- She is the only angel to date to be officially buried, given that two angels visit the grave to pay their respects.