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“Every member of the Covenant shall walk the path. None will be left behind when our Great Journey begins. That is the Prophets' age-old promise, and it shall be fulfilled!”
— Prophet of Regret

The High Prophet of Regret, born Lod Mron and previously known as the Vice Minister of Tranquility,[1] was the youngest of the three High Prophets that lead the Covenant High Council during the Human-Covenant war.

Rash, ambitious, immature, and naive compared to the other Prophets, Regret originally served as Vice Minister of Tranquility, where he worked frequently with Sangheili and had adopted some of their personal traits, such as a preoccupation with honor and personal arms. However, he also exhibited traits of alcoholism and smoking.[3] Still, Regret was intelligent and fiercely opposed to Humanity throughout the course of the Great War[4] and expected his soldiers to obey him without question.[5]

He was the primary antagonist of Halo Wars and a secondary one in Halo 2.


Age of Doubt[]

During the 23rd Age of Doubt, 2524 by the UNSC Military Calendar, Regret held the post of Vice Minister of Tranquility. He was unique among the Prophets for his confrontational demeanor, a trait he gained from working with the Sangheili. He informed the Minister of Fortitude about the existence of Harvest and what they believed to be a vast repository of Forerunner artifacts, which were the Reclaimers on the planet. After conspiring with Fortitude to gain these artifacts for their own use, he helped him by pretending to sympathize with those blacklisted from reproducing due to inbreeding, which included the Prophet of Restraint. After pretending to be the father of two children Restraint had unlawfully fathered, Tranquility blackmailed Restraint into stepping down from his position as High Prophet.[6]

Before their coup, the Prophets visited the Philologist, leader of the Ascetic priests aboard the Forerunner dreadnought and keeper of the Oracle, which was actually the long-dormant Mendicant Bias, an ancient AI that had not spoken to anyone for hundreds of years. When the Luminaries of Harvest were entered into its matrix, the Oracle reactivated and said the symbols had been misinterpreted: the symbol didn't mean Reclamation, but Reclaimer, who it called his makers. Fortitude concluded that these Reclaimers, the planet's aliens, were living Forerunners who had been left behind when the others transcended. Tranquility refused to believe this and accused the Philologist of tampering with the Oracle. As it attempted to launch the Dreadnought from High Charity the Lekgolo worms inside the Dreadnought short-circuited it and stopped Mendicant Bias. Fortitude, Tranquility, and the Philologist made the decision to disconnect the Oracle from the ship and decided to eradicate humanity before any of the Covenant learned that the most basic premise of their faith was false, and that "living gods" would probably replace the Prophets. As such, their ascension was made, taking the names of Truth, Regret, and Mercy.[6]

Age of Reclamation[]

The Second Battle of Harvest

“The Journey requires Sacrifice! Set the charges. Return to us! Our patience is not infinite!”
— Regret, speaking via hologram to Ripa 'Moramee

Regret and Ripa 'Moramee.

Upon the onset of the Human-Covenant War, Regret formalized the Fleet of Glorious Interdiction; a Sangheili-led military force under his personal supervision,[7] and appointed Arbiter Ripa 'Moramee as its leader, choosing him for his ruthless efficiency and undying loyalty.[5] Obsessed with the Forerunners and the prospect of activating the Halo Array, Regret dispatched 'Moramee on numerous missions throughout Covenant and human space to find the means to do this.[8] Eventually, during the Harvest Campaign, Covenant forces discovered a Forerunner relic buried in the planet's northern polar region.[9] This relic proved to be some sort of Forerunner mapping device. Dispatching a force led by Ripa 'Moramee, valuable information was recovered. With UNSC forces closing in however, Regret ordered that the relic be destroyed to prevent the retrieved information from falling into human hands. Against his instincts, the Arbiter obeyed.[10] However, despite Covenant efforts, the site was not destroyed, allowing the humans to learn of the information Regret planned to use. Later at the Apex, a Forerunner hangar, he discussed with the Arbiter his plans to activate the Forerunner ships located there. When he could not activate the artifact himself, he ordered the Arbiter to capture the human female, Ellen Anders, who they encountered at the Ice Relic and bring her to the Apex. Later when the Arbiter returned with her, Regret was in disbelief, saying "you would hardly think them a threat." When they learned the Humans were closing in on them Regret evacuated to High Charity. However, Regret's plans to use the dormant ships were foiled when the crew of the UNSC Spirit of Fire overloaded the Shield World's internal sun, destroying all the ships and the planet.

Battle of Charybdis IX[]

Three years later, Regret was present at the Battle of Charybdis IX, with his personal Assault Carrier, Infinite Sacrifice, where he oversaw Thel 'Vadamee, and the glassing of the planet. He then called upon Thel to find the source of human-modified Covenant weapons, and bring them to the Prophets. Little did Regret know, that he was in fact, interfering with the Prophet of Truth's plans to find the location of all the human colonies and also Earth.  Most of his men were killed by the Brutes, but the humans of the UNSC Midsummer Night took out the Kig-Yar responsible with the help of Spartan Gray Team. Afterwards, their plans eventually fell back into tandem, but Regret knew they would likely clash again.[3]

Battle of Earth[]


Regret speaking inside the Council Chamber after the Battle of Installation 04.

“Dear humanity, we Regret being alien bastards, we Regret coming to Earth, and we most definitely Regret that the Corps just blew up our raggedy ass fleet!.”
— Sgt. Johnson to Miranda Keyes on Regret's message.

In 2552, Regret served during the destruction of Halo Installation 04 and helped condemn the Sangheili Supreme Commander (later the new Arbiter) who was responsible for the loss of the ring.

Some time before this, Regret managed to discover the location of a Forerunner artifact of great importance: a device which would generate a Portal to the Ark, where the Covenant believed they could begin their "Great Journey" by activating the Halo Array. Unbeknownst to Regret, the world this machine was located on was humanity's home world, Earth. While the Prophet of Truth knew of the human presence on Earth, he had kept it, along with his personal plans for the planet and the Covenant, a closely guarded secret.

Without even informing the other Hierarchs, the Prophet of Regret subsequently led a small fleet of two Assault Carriers and thirteen Battlecruisers to Earth. After the Prophet of Truth learned of this, he quickly sent a massive support and excavation fleet to Earth.[11]


A hologram of Regret with the other Prophets condemning Thel 'Vadam during his trial after the destruction of Installation 04.

When Regret arrived near Earth on October 20, 2552, he quickly found himself greatly outnumbered by UNSC defenses. Instead of retreating however, he sped towards the planet in religious fervor, sending Ranger Elites and Boarding Craft to destroy the Orbital Defense Platforms Malta, Athens, and Cairo so he could push through into the heart of Africa. Despite John-117's actions, his ship made it to the ground and deployed the first full-scale invasion force by the Covenant on Earth.[12]

After landing in New Mombasa, Regret's forces searched the city for the Forerunner artifact, supported by Scarabs and many Phantom dropships. As the UNSC forces approached his Carrier, Regret's ship initiated a slipspace jump in the middle of New Mombasa to escape and regroup. The force generated by the jump heavily damaged the city. The move was so surprising that only the UNSC In Amber Clad and a few other UNSC ships were able to follow the Carrier through the slipspace portal.[13]

Battle of Installation 05[]

“I shall light this holy ring, release its cleansing flame, and burn a path into the divine beyond.”
— Regret

Prophet of Regret assimilated into the Gravemind.

Regret's Carrier deployed ground and infantry forces onto the surface of Installation 05, and set up a presence around a temple in the middle of a lake, from which Regret began his religious sermons.[14] He transmitted an apology to the Prophet of Truth, indicating that he couldn't have known that the humans would be there or in such force. Truth responded that only Mercy had spared him from public condemnation. Nevertheless, High Charity and the Second Fleet of Homogeneous Clarity rushed to the new Halo, and a flight of Phantoms was deployed to rescue the Hierarch.[15]

In Amber Clad arrived in the system soon after and deployed ODST forces on Installation 05 along with John-117 to locate and kill Regret. The operation was a success, with the Spartan breaking through Covenant defenses, killing Regret and his Honor Guards. Soon afterward High Charity made a jump to the ring and ordered one of the nearby ships to use its Energy projector to destroy the temple, nearly killing the SPARTAN and leaving Regret for dead.[15]

Regret's body was later assimilated and reanimated by the newly formed Gravemind when his body was flung into the depths of the large lake surrounding the Temple and later discovered by the Gravemind. He expressed annoyance with another captive of the Gravemind, 2401 Penitent Tangent, and reacted to the presence of the Arbiter, warning him to forget any heretical suggestions made by the Monitors and the humans and to pursue the Great Journey. It was thanks to Regret that the Gravemind discovered the location of the gateway to the Ark.[16]

What remained of Regret was destroyed with the Gravemind when Installation 08 was prematurely fired by John-117 and Cortana during the Raid on Installation 08.


“Nothing can be done until my sermon is complete!”
— Regret on activating Delta Halo, after being absorbed by Gravemind

Regret has shown his reckless nature more than a few times. Being the youngest of the Hierarchs, he tends to act rashly without thinking. In Halo: The Cole Protocol, it caused a lot of trouble for Thel 'Vadamee and the Prophet of Truth when he ordered his forces to deal with the humans at the Rubble and the Kig-Yar trading with them. In Halo 2, upon learning the location of the Ark, Regret sped to Earth with an insufficient fleet, he persistently headed for what he thought was an easy unlocking of the Ark. This mistake had eventually cost him his life on Delta Halo. Regret adopted his aggressive and brash demeanor during his extensive service alongside the Sangheili in missionary and expeditionary affairs.

Regret was very fond of the Sangheili and showed compassion towards them.[3] He was not involved in the betrayal and massacre of the Sangheili as he died prior to the Great Schism.[15] Regret likely would have opposed it, as evident of Truth marking him as a moderate that needed to be eliminated, as well as a scapegoat to kickstart the Schism.


Halo 2[]

“Human filth! You dare to befoul this holy place?”
— Regret, facing John-117 in battle.
Wise Prophet of Regret

Regret in Halo 2

The only weapons that Regret had were his gravity throne, seen in the level Regret," and his Plasma Pistol. Regret is heavily guarded by Grunts and Sangheili Honor Guardsman of seemingly infinite numbers. The throne is equipped with two gravity cannons that glow bright orange and are a modified version of a Hunter's Assault cannon.

The gravity throne allows Regret to teleport a short distance away. The most effective way to deal with the Prophet is to jump onto his gravity throne and beat him to death with melee attacks. Energy swords will not kill the Prophet, though they can reduce the number of melee hits required to kill him. This is due to a "heavy-duty" shield[citation needed]. Rockets and fuel rods are surprisingly ineffective against Regret. Although he will shout out and bleed when hit, the player must still board his throne and melee him to death. His blood, like all San' Shyuum, is shockingly very similar to Human blood.

Halo Wars[]

Halo Wars Prophet

The Prophet of Regret as he appears in Halo Wars.

“Burn, heretics!”
— Regret, when using his Cleansing ability.

Regret is armed with a Plasma Cannon attack and the "Cleansing" ability which calls down an energy beam from an orbiting vessel. Although in Halo 2 his throne is always equipped with personal shields and modified fuel rod cannons, in Halo Wars the Prophet starts with weapons similar to plasma rifles, then is upgraded to the fuel rods that are seen until his death. Also, although not present in Halo 2, the Prophets chair eventually gets upgraded to a flight chair, giving him the flying capabilities that the books depict. Note that his voice sounds somewhat different compared to Halo 2's, yet both versions have the same voice actor, this could be because of the twenty year time difference in age. His appearance is also radically different, with a darker tone of skin and less of the typical Prophet physiology, such as certain skin textures.[17]

In non-canon Skirmish and Multiplayer, the Prophet of Regret is not only present on the battlefield, but often leading the charge himself. No canon Prophet would exhibit such behavior due to the well-established text in the Writ of Union. This may be another sign of his extremely reckless nature, as opposed to a mistake by Ensemble. It does reflect his aggressive behavior in the novels.


  • Regret’s Sentence - Medium cleansing beam which does more damage.
    • Resource: 300
    • Minimum Tech Level: 1
  • Regret’s Doom - Large cleansing beam for even more damage.
    • Resource: 500
    • Minimum Tech Level: 2
  • Regret’s Condemnation - Increases damage of beam.
    • Resource: 700
    • Minimum Tech Level: 3


  • "Blessed Immolation": Upgrades to fuel rod cannons for damage increase.
  • "Ancestral Perversion": Dual protector units hover near Prophet and defend him.
  • "Divine Absolution": Upgrades chair so the Prophet becomes a full-fledged air unit.

Leader Ability - Cleansing[]

When activated, there is a miniature glassing beam sent down from the sky. When fully upgraded and used for a few seconds, the beam's size is increased substantially.


Graphic Halo Halo Alpha has a collection of quotes related to Prophet of Regret on its quotes page.
  • Regret's title, like all Prophet Hierarchs, is ironic, as he never showed any regret for his actions.
  • If you melee Regret's hologram in any level, you will lunge towards him, much like the Arbiter can lunge through the Heretic Leaders holo-drone. The lunge is more noticeable if you use an energy sword.
  • When you kill the Prophet of Regret on the level Regret, he will drop a plasma pistol. He had held the same weapon in Halo: Contact Harvest, and was rumored to keep it with him at all times in Halo: The Cole Protocol.
  • Regret is voiced in both Halo 2 and Halo Wars by Robin Atkin Downes.
  • As of May 12, 2009, an update was released by Ensemble which made the Prophet of Regret's movement speed slightly slower in Halo Wars Matchmaking, this was an attempt to stop "Leader Rushing."


Halo 2[]

Halo 2: Anniversary[]

Halo Wars[]




  1. 1.0 1.1 1.2 1.3 1.4 Halo: The Essential Visual Guide, page 148
  2. Halo Wars Character Profile: Professor Anders and the Prophet of Regret
  3. 3.0 3.1 3.2 Halo: The Cole Protocol
  4. Professor versus Prophet. Game Daily. Accessed on 2009-01-26
  5. 5.0 5.1 Loyalty will keep you alive. Game Daily. Accessed on 2009-01-26
  6. 6.0 6.1 Halo: Contact Harvest
  7. Halo: The Essential Visual Guide, page 10
  8. Obsessed Prophet. Game Daily. Accessed on 2009-01-26
  9. Halo Wars - Level: Alpha Base
  10. Halo Wars - Level: Relic Approach
  11. Halo Waypoint, "Ten Twenty" history entry
  12. Halo 2, level Cairo Station
  13. Halo 2 - Level: Metropolis
  14. Halo 2 - Level: Delta Halo
  15. 15.0 15.1 15.2 Halo 2 - Level: Regret
  16. Halo Waypoint, "Regret" intel entry
  17. Don't let his weak appearance fool you. Game Daily. Accessed on 2009-01-26