Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki

Thep Khufan Commander Tersce Tenebrosi was the leader of the Thep Khufan Armada that sought to revive the Unleashed in Back in Action: Alien Universe.


Tersce always wears purple royal Thep Khufan garbs. He is quite tall for a Thep Khufan.


A cryptic being who lurked typically in the shadows, the Commander's nepotistic background and grip on Anur Khufos was the ultimate secret he kept almost to his grave. He envied his brother Loitus, the favorite of his late father Calign, but longed for the latter's attention, so much so that he gathered the crystals the man created and used it to create the Tritadagen staff and revive him as the Unleashed.

Very personally motivated, he sought to make his people less the butt of the joke by conquering (or destroying) the universe, if only that he might have been afforded more attention.

Powers and Equipment[]

Outside of typical Thep Khufan stretching abilities, he demonstrated an intermediate level of magical prowess.

Tertiary Wing[]

This section is incomplete.

The Tertiary Wing is the Commander's primary travel vessel. A massive ship the size of a major city, it was Tersce's primary residence, as he rarely left - not even departing to tend to native planetary affairs.

Back in Action: Alien Universe[]

This section is incomplete.
  • In Limited, he escaped near-defeat at Lodestar's hands in his ship's escape pod, leaving Ben to be caught up by the vessel's self-destruct.
  • In Magikfest's Endgame, Scarogus delivered him another Cyogen crystal. They began their course to a planet later revealed to be Pyros.
  • In No Strings Attached's Endgame, Albedo and Elena relayed the success of their mission on Earth to the Commander, confirming Ben's unawareness of their presence in the battle. Scarogus delivered yet another Cyogen crystal, this time extracted from Cyanne to prevent him from doing the transplant for Chili, the one person who knows who shot him. The Commander was informed that they were approaching their first destination (Pyros) and were ready to enact stage 2 of their plans.
  • In The Sea's the Limit's Endgame, he hinted at the events of Operation Pyros and initiated the mission (which took place immediately after the Endgame).
  • In Hit and Miss's Endgame, he announced the addition of a new member to the team.
  • In Operation Pyros, he compromised the team (of Scarogus, Albedo, and Elena) during their mission to retrieve the Tetragen crystal by alerting the entire base in Nocturnal Flame of their presence.
  • In Dial Z for Zombified's Endgame (chronologically before Hit and Miss), he reviewed the team's performance on Operation Pyros. He hinted at adding the member announced in Hit and Miss.
  • In Ten Plus Twenty's Endgame, Sii was welcomed by the Commander to listen in on a conversation with Mistress, a woman whose first mission would be assigned shortly after.
  • In Happily Never Happened's Endgame, he spied on Ben, Ilario, and Kitty Rhymes in Chronospect, as well as the imprisonment of Metalink by Clockwork and the Chapters, and even on Future Ben as XLR8.
  • In Missing Link, he aided in the mission that ultimately led to Cyanne's Incarcecon imprisonment.
  • In New Girl, the one Thep Khufan ranking higher than him, General Warren. He had Mistress destroyed after she was revealed to have been Rojo to most of the galaxy. Word spread quickly, and when it reached the General, he exchanged his intel up to that point with him for his brother Loitus's promotion to second-in-command. This came with Scarogus's own demotion to third-in-command, sowing discord in the armada.
  • In Revelation's Endgame, he assessed Elena's first day patrolling the Null Void branch of Incarceron, learning the details of Vilgax's, Malevolence's, Slix Beta's and Cyanne's plan to escape Incarceron.
  • In Man in the Stone Mirror's Endgame, his naïvete brought him to try to summon the Man in the Stone Mirror. Tragically, he swapped places with him, ending up trapped in the mirror. It allowed him to be linked up to the main computer of the Tertiary Wing, the Armada's main vessel. He later engaged in the news, where an anchorwoman speaks about a girl named Mercedes Barnes, inviting him to select a new Mistress.
  • In The Alternative's Endgame, he promotes his brother Loitus to second-in-command of the Thep Khufan Armada, to Scarogus's chagrin.
  • In Why Am I Here?'s Endgame, he converses with Elena about bringing in Mosquito.
  • In Love Stuck's Endgame, he asks about Scarogus's whereabouts and informs Elena of another nanochip shapeshifter.


Back in Action: Alien Universe[]

Endgame only[]


Alternate Counterparts[]

  • In Limited, a version of him destroyed Earth in a not far-off future.


Created by COLOR
Alien Universe (BTAU - BiA - SiC) - Clad in Darkness - Benjection - DC's Hero of Heroes
Episodes and Shorts of Back in Action: Alien Universe
Season 1 Infernosphere - Limited - Magikfest - No Strings Attached - The Sea's the Limit - Hit and Miss - Dial Z for Zombified - Ten Plus Twenty - Happily Never Happened - Missing Link - New Girl - Revelation - Man in the Stone Mirror - Threat or Menace - The Alternative - Why Am I Here? - Love Stuck - Ultimate Solution - Overcoming Adversaries - Ledger Recon - Welcome to Chronospect - Prelude of the Unleashed - Ben 10: Alien Universe Unleashed
Season 2 Meet the Replacements - Hooking Up With the K's - The Armaggedroid - Fate of the Helpers - Madame Regle - Leaked - Shades of Dawn - Foreverlasting - Can't Trust the Weather, Man - Plight of Pinocchio - Maximum Slumber - Dusk - Escalation - Malevolence - Never Set in Stone
Season 3 Adrift - Marooned - Hall of Mirrors - Benjamin's Island - Skeletons - ...Enjoy Such Liberty - Welcome to Omnitropolis - Time is of the Essence
Shorts Meet the Fans - Operation Pyros - Moira's Presents - Clock Worked - Unity Broker - Why Did the Chicken Cross the Road? - Azmuth's Plumbing - Zennith, Creator of the Omnitrix - The Great Tram Robbery
Unique Aliens in Back in Action: Alien Universe
First used by Super Ben (Assault Omnitrix) Obsorber - Nigester - Plastikitee - Anos - Streak - Bugbite - Muckslide - Autosassin - Ultimate Upchuck - Clinger - Healding - Alkamine - Brawnoceros - Combustiball - Cardstruct - Dreadsense - Frisbit - Koldiak - Plasmodic - Seismix - Wavelength - Warrock - Fetterwing - Suctionrupt
Majestic Forms TBD
First used by Dawn (Alphaline Omnitrix) Vertigo - Starhavoc - Slyt - Blankslate
First used by Future Ben Atomhammer - Ultimate Brainstorm
Characters in Back in Action: Alien Universe
10 Squad Ben Tennyson - Gwen Tennyson - Kevin Levin - Julie Yamamoto - Chelsey Tennyson - Max Tennyson - Cooper Daniels - Ken
Villains Future Ben - Thep Khufan Commander - Scarogus - Dawn - Vilgax - Albedo - Malevolence - Darkstar - Sii - Elena Validus - Dr. Animo - Cyanne - Mistress - Hurricane Vance - Project Inferno - Nightcaster II - Clancy - Metalink
Supporting Characters Professor Paradox - Azmuth - Charmcaster - Eunice - Verdona - Rex - Sir George
Other Timelines/Possible Futures Gwen 20 - Upgrade Ben - Altrazon - Jennifer-Mercedes Tennyson
Groups Second Gynurans (Eli Griswold - Aion) - Omega Squad - Plumbers (Karin Frikton - Io) - Thep Khufan Armada - Board of Galvan
Others Chili - Moira Yourouguaduan