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Martinet Ludinus Da'leth is an elven mage and the current leader of the Cerberus Assembly having been alive at the time of its founding[4]. As an NPC, Ludinus Da'leth is played by Matthew Mercer.



Ludinus Da'leth is an older Elven man with pale skin and long white hair. The Archmage wears deep blue robes[5] and occasionally uses a cane.[6]


A reserved, wise, and calculating individual, Da'leth maintains a generally stoic demeanor during the events of Campaign Two, though Jester Lavorre was able to pull genuine confusion from him during one of their exchanges.[7]

Vess DeRogna believed his ultimate goal is to quietly maintain and grow his personal power above the reach of the Cerberus Assembly and King Dwendal himself. [8]

Da’leth holds a deep hatred for the Kryn Dynasty, though he hides the true depths of his animosity.[1] He has expressed his suspicion and mistrust of their worship of the Luxon beacon and their escape from the cycle of death through it along with citing a thirty-year period of violent skirmishes prior to 836 PD.[9] As Archmage of Domestic Protections, Da’leth is charged with restructuring the Dwendalian military, as well as construction and maintenance of the garrisons along the Xhorhasian border, and spares no effort gathering intelligence on the neighboring enemy nation. He spends a majority of his time developing arcane weaponry, shoring up military might, and quietly undermining the leadership of his military counterpart in the King’s retinue, Crown Marshal Damurag.[1]



Da'leth is one of the mages who survived the destruction of Molaesmyr in 585 PD and fled to Bysaes Tyl, but saw the opportunity to achieve greatness within the empire and left his culture behind to continue his arcane pursuits, joining the Empire's then-young Cerberus Assembly.[1]

Da'leth is the eldest member of the Cerberus Assembly and one of its founders. He now acts as the organization's leader, assuming the title of Archmage of Domestic Protections.

Like a majority of the Cerberus Assembly, Da’leth has a vested interest in Aeor and Pre-Calamity artifacts.[10] During his earlier years, his home, Molaesmyr, was destroyed and the surrounding Savalirwood corrupted from experiments on Aeorian artifacts gone awry.[11] During his tenure as leader of the Assembly, excavations at Shattengrod began and the Balenpost outpost in Eiselcross was established to study the Aeor crash site.[12][13] In 835 PD, he hired Dagen Underthorn as a guide to escort him on his trip through Eiselcross to oversee the initial discovery of one of the Aeorian crash sites, A2.[14] The A2 site seemed largely to be an biological experimentation complex and notably contained an arboretum full of corrupted trees that mirrored the corruption of the Savalirwood surrounding Molaeysmr. In 836 PD, the Mighty Nein encountered the recent remains of his apprentice, Zana Deelio, within the ruins, suggesting Da’leth’s continued interest in the site.

Sometime prior to 835 PD, Da'leth was Shadowhand Essek Thelyss's primary contact in the clandestine Luxon beacon exchange that ultimately kick started the War of Ash and Light.[15] Thelyss stole two of the Dynasty's holy beacons and surrendered them to Da'leth for experimentation in exchange for a copy of their findings. Vess Derogna's notes on her experiments revealed that, at minimum, DeRogna and Da'leth aimed to imbue a selection of the Empire's military with the extracted dunamis to heighten their combat capabilities.[16][17] As the Mighty Nein learned the truth of the stolen beacons and presented it to King Dwendal, Da'leth orchestrated a thorough cover-up, claiming the Dynasty had mistaken the stolen beacon for the one the Empire recently unearthed from Shattengrod.[18]

"Homeward Bound" (2x48)

The party saw Ludinus Da'leth teleport into Felderwin and meet Vess DeRogna there.

"A Tangled Web" (2x77)

In the Mighty Nein's new quest to find the second stolen beacon, the head of the Cerberus Assembly was one of many people they theorized would know more about its whereabouts. When Jester asked Dairon about the mysterious man they'd dubbed 'Blondie' that was involved with the fiendish portals, they recognized him as resembling Vence Nuthaleus, the Annex to Martinet Ludinus Da'leth. Dairon advised the Nein against a confrontation with Ludinus as he was "quite capable".

Fan art of the Candle of Ludinus, by Cyarna Trim.[art 2]

"Punishment and Politics" (2x87)

Da'leth was in attendance in the throne room along with King Dwendal, Headmaster Oremid Hass, Archmage Trent Ikithon retainer to the crown Oliver Schreiber, Prime Arbiter Sydnock Truscan, High Curator Yudala Fon, and Arcanist Allura Vysoren when the Mighty Nein revealed the details of Vence Nuthaleus's treachery and collaboration with the Angel of Irons cult. King Dwendal proceeded to put the Mighty Nein in Da'leth's care while they were in Rexxentrum, and he, in turn, arranged their lodging.

"Unwanted Reunions" (2x88)

After breakfast, Da'leth brought the Mighty Nein to his tower in The Shimmer Ward to further discuss both the Angel of Irons cult and the upcoming Luxon beacon exchange. After the Mighty Nein wished to inspect the beacon, Da'leth escorted them to the Vergesson Sanatorium where they were joined by Trent Ikithon for the inspection. After teleporting the Nein back to the Shimmer Ward, Da'leth parted ways with them.

"The Fancy and the Fooled" (2x97)

The Martinet was meeting with Lord Dezran Thain and Lord Athesias Uludan aboard the Cerberus Assembly ship Wind of Aeons when the Mighty Nein arrived in Nicodranas prior to the peace negotiations with the Kryn Dynasty. Frumpkin later eavesdropped on him having a secret conversation with Lord Thain, who was revealed to be Essek Thelyss. When confronted by the Mighty Nein, Essek confessed to stealing the Luxon beacons and handing them over to Ludinus and Trent Ikithon for research, with Vess DeRogna helming a period of this research.

"High Seas, High Stakes" (2x99)

Caleb and Beau encountered Da'leth aboard the Wind of Aeons during the voyage to the peace negotiations when they flew there to inspect the Luxon beacon. Da'leth seemed surprised that Vess DeRogna had been to their ship and that she had offered them work in the north once the negotiations were completed.

"Fond Farewells" (2x141)

Knowing Caleb Widogast participated in nullifying and imprisoning Trent Ikithon, Da'leth offered him the vacant seat of Archmage of Civil Influence. Caleb promptly rejected him with a veiled threat, and Da'leth left to later appoint former-Volstrucker Astrid Beck to the seat.[19]


Vence Nuthaleus

Nuthaleus was Da'leth's annex and assistant until he was revealed as a collaborator with the Angel of Irons cult, sewing discord among both the Dwendalian Empire and Kryn Dynasty. Da'leth expressed surprise and embarrassment when the Mighty Nein revealed Nuthaleus as a traitor and a cultist before the King’s Council and his fellow Assembly members. [20] Da’leth moved quickly to have the fleeing Nuthaleus intercepted, and was willing to surrender him to the Dynasty as part of the peace negotiations, though he intended to interrogate him before the exchange.[21]

Vess DeRogna

Despite a mutual interest in Aeor, Da'leth deeply disliked Vess DeRogna, and the two shared a mutual distrust.[22][23][24] He put a notable amount of pressure on her and her work with Yeza Brenatto during the experiments with the stolen Luxon beacon, and they were witnessed arguing in Felderwin.[25]

Their tension persisted regarding the research and excavation of Aeor. DeRogna strove to keep the details of her last expedition secret from him, and he was displeased when he learned of her planned trip.[26][27]

Trent Ikithon

Though Da'leth found Trent Ikithon useful, as evidenced with their collaboration with the stolen Luxon beacon, Da'leth found him challenging, off-putting, and, ultimately, a disappointment. [28][29] He had some awareness of Ikithon’s method of training Volstrucker, though he claimed never to have witnessed it personally. [30]

Essek Thelyss

Da’leth was Essek Thelyss’s primary contact in the illicit Luxon beacon exchange[31], though he also interacted with Trent Ikithon and Da'leth's annex, Vence Nuthaleus. [32] While the two were able to work together, they were mutually happy to sever all ties upon the beacon’s return to the Dynasty.[33] Da'leth found Thelyss to be a cold individual, but noticed a gradual thaw as he began to interact with the Mighty Nein. Thelyss, for his part, thought Da'leth lacked friends.

Yussa Errenis

Ludinus is very intelligent. I do not know what his main intent is, but he's been around since the beginning. But he's also the one that keeps the balance with the king. He is the one that keeps the peace, from an archmage's standpoint, but I'm wary of anyone that powerful, both from an arcane and political standpoint.
Yussa's impression of Da'leth[34]

Character Information


Wizard Spells

Unknown Level
  • Unknown, possibly Antimagic Field [38]

Notable Items


  • To Jester: It's entirely off-putting how disarmingly charming you are. I genuinely do not know how to react. Take that as a compliment.[39]
  • Caleb: Well, I am a disappointment to my teacher, I am sure. As well as many of my peers.
    Ludinus: Your teacher's a disappointment to many others. He has his uses, but... Ah. People are complicated, are they not?[40]
  • To Essek: I'm surprised to see such affection from such a previously cold individual.
    Essek: Well, I am surprised myself. Maybe you should try friends sometime.[41]


  • The term martinet both refers to a multi-tail whip used as a punitive device, and a person who is a strict disciplinarian.
  • Da'leth is of northern Elven descent, and much of that bloodline is from elves who once inhabited Molaesmyr.[42]


  1. 1.0 1.1 1.2 1.3 See See Explorer's Guide to Wildemount, p. 42.
  2. 2.0 2.1 See See Explorer's Guide to Wildemount, p. 42.
  3. See "Unwanted Reunions" (2x88).  Da'leth was able to cast Teleport, a 7th-level spell, twice in one day.
  4. See "Whispers of War" (2x18) at 3:40:28.
  5. See "A Game of Names" (2x49) at 13:01.
  6. See "Unwanted Reunions" (2x88) at 01:31:19.
  7. See "Unwanted Reunions" (2x88) at 02:02:48.
  8. See "Frigid Propositions" (2x109) at 03:31:37.
  9. See "Unwanted Reunions" (2x88) at 01:45:01.
  10. See See Explorer's Guide to Wildemount, p. 41.
  11. See "Critical Role Campaign 2 Wrap Up" (Sx56) from 2:52:03 through 2:54:49.
  12. See "Unwanted Reunions" (2x88) at 03:06:45.  excavations at Shattengrod began 'decades ago', which easily overlaps with Da'leth's time on the Assembly and very likely his leadership.
  13. See "Dinner with the Devil" (2x110) from 01:34:50 through 1:35:27.  Balenpost was established within 50 years prior to 836 PD, which easily overlaps with Da'leth's time on the Assembly and very likely his leadership.
  14. See "Fetching Fables & Frosty Friends" (2x115) at 43:01.
  15. See "A Walk to Warmer Welcomes" (2x124) at 03:12:55.
  16. See "Homeward Bound" (2x48) from 3:32:21 through 3:35:49.
  17. Liam O'Brien shared pictures of the notes pages used in game on his Twitter.
  18. See "Punishment and Politics" (2x87) at 03:28:12.
  19. See "Fond Farewells" (2x141) at 5:41:30.
  20. See "Punishment and Politics" (2x87) at 03:02:38.  Ludinus's reaction was never proven with an insight check, though Matt delivered it as part of a block of narration, making a check inopportune.
  21. See "Unwanted Reunions" (2x88) at 01:40:21.
  22. See "High Seas, High Stakes" (2x99) at 02:45:18.  via Beau's Nat 20 Insight Check during the prior conversation.
  23. See "Frigid Propositions" (2x109) at 03:26:14.
  24. See "Worth Fighting For" (2x126) at 01:40:25.
  25. See "The Chase Begins" (2x112) at 01:49:50.
  26. See "Frigid Propositions" (2x109) at 03:26:42.
  27. See "High Seas, High Stakes" (2x99) at 02:45:52.
  28. See "Unwanted Reunions" (2x88) at 03:18:23.
  29. See "The Fancy and the Fooled" (2x97) at 03:19:31.
  30. See "Unwanted Reunions" (2x88) at 03:18:43.
  31. See "A Walk to Warmer Welcomes" (2x124) at 03:12:55.
  32. See "High Seas, High Stakes" (2x99) at 03:28:29.
  33. See "The Fancy and the Fooled" (2x97) at 01:04:56.
  34. See "Titles and Tattoos" (2x84) at 0:38:45.
  35. See "Unwanted Reunions" (2x88) at 02:16:31.  Da'leth cast Sending as though "second nature", possibly as a Signature Spell.
  36. See "High Seas, High Stakes" (2x99) at 1:57:27.  Da'leth casts a spell on the tea set consistent with Telekinesis.
  37. See "Homeward Bound" (2x48) at 03:13:36.  Da'leth apparates into Felderwin in a blue flash, presumably Teleport.
  38. See "The Fancy and the Fooled" (2x97) at 01:03:08.  Da'leth cast "some sort of a radial dispel to lock down or destroy any localized magic".
  39. See "Unwanted Reunions" (2x88) at 3:25:06.
  40. See "The Fancy and the Fooled" (2x97) at 3:19:26.
  41. See "The Fancy and the Fooled" (2x97) at 1:05:38.
  42. See "Homeward Bound" (2x48) at 03:15:02.


  1. Fan art of Martinet Ludinus Da'leth, by ravenIocke (source). Used with permission.
  2. Fan art of the Candle of Ludinus, by Cyarna Trim (source). Used with permission.