Prophet

A prophet is an occupation among particular humans. According to Castiel, they're selected primarily by high-ranking angels, possibly by seraphs or archangels. They speak of events to come, on instruction from Heaven. Castiel refers to them as "mouthpieces and conduits for the inspired word."

Archangels are tied to prophets, acting as their protectors when the need arises - each prophet has an archangel "tethered to them." Any presence of danger will cause intervention from his or her archangel. However, an archangel has yet to protect Kevin Tran, seeing as two of them are dead, two are incapacitated, and the existence of additional archangels has never been mentioned (some religions list as many as seven archangels).

Some powerful beings like Zachariah can implant prophecy, whether it be false or true, into a prophet's mind, as he demonstrated on Chuck Shurley.

Castiel claimed that Leah is not a prophet because he has every prophet's name seared into his brain, and it is later shown that this is inherent in all angels when Crowley tortured Samandriel in order to gain information concerning the names of the current prophets.

According to Castiel, only one prophet may be active at a time. When the active prophet dies, another one is awakened and replaces the previous prophet. The entire line of succession of prophets up to the future is known to all angels; however, they do not know the names of prophets that have yet to be born.

To date, Kevin Tran never showed the capability to prophesize or to see events currently taking place. His abilities were limited to deciphering the Word of God. Whether this indicates that different prophets have different functions, or that the ability of prophets has since changed the moment the apocalypse was averted is yet to be explained.

Known Prophets

 * Chuck Shurley
 * Kevin Tran
 * Luke

Abilities

 * Precognition
 * Immunity (through angelic protection)
 * Clairsentience
 * Decryption of The Word of God