An Angel is the common name given to the inhabitants of Heaven.
Main article: Archangel
Archangel, the name given to an ordinary Angel or a deceased mortal that has passed through the Fires of Purification and they are warriors of heaven and fight demons that invaded heaven and try and capture souls that arrive there.
Main article: Guardian Angel
Guardian Angel, the name given to the Angel that brings those that have died on Earth up to the Heaven's to prepare for their reincarnation.
Main article: Four Horsemen
Four Horsemen, the name given to the Angel who hold the four plagues of Armageddon.