A guardian angel is an angel who has been assigned to protect or guide a person or a group of people. Currently, the guardian angel who has appeared in the series is Fred . Fred past heaven laws by kissing stacy and having romantic relationship with a human. For all of that Fred was sent back to heaven and heaven took stacy memory of Fred relationship withh her. Now Jane's current guardian angel is Luke.
The belief in guardian angels can first be seen in Ancient Greek philosophy and judaism. Plato mentioned a guardian angel in Phaedo. The belief that angels can act as guides and intercessors for men can also be found in the Book of Job, the Book of Daniel, the Gospel of Matthew and the Acts of the Apostles.