Primary Antagonists

Primary Antagonists are the main enemies of a questline, side quest, or miscellaneous quest.

Main quests

 * Jagar Tharn – Primary antagonist of.
 * Woodborne – Primary antagonist of.
 * Amiel Richton – Primary antagonist of
 * Dagoth Ur – Primary antagonist of.
 * Almalexia – Primary antagonist of.
 * Hircine – Primary Antagonist of.
 * Quintus Varus – Primary antagonist of.
 * Shadow of Conflict – Primary antagonist of.
 * Mehrunes Dagon – Primary antagonist of and.
 * Umaril – Primary antagonist of.
 * Jyggalag – Primary antagonist of.
 * Alduin – Primary antagonist of.
 * Harkon – Primary antagonist of.
 * Miraak – Primary antagonist of.
 * Molag Bal – Primary antagonist of.
 * General Malivus – Primary antagonist of.
 * King Kurog – Primary antagonist of.
 * Nicolas – Primary antagonist of.
 * Primate Artorius – Primary antagonist of.
 * Clavicius Vile – Primary antagonist of.
 * Nocturnal – Primary antagonist of.

Arena
To be added–

Daggerfall

 * Lord K'avar – Primary antagonist of the Fighters Guild Questline (Daggerfall).

Morrowind

 * Sjoring Hard-Heart / Primary Antagonist of the Fighters Guild if one sides with Percius Mercius.
 * Gentleman Jim Stacey – Primary Antagonist of Fighters Guild if one sides with Sjoring Hard-Heart.

Oblivion

 * Ri'Zakar and The Blackwood Company Hist – Primary antagonist of the Fighters Guild questline.
 * Mannimarco – Primary antagonist of the Mages Guild questline.
 * Mathieu Bellamont – Primary antagonist of the Dark Brotherhood questline.
 * Hieronymus Lex – Primary antagonist of the Thieves Guild questline.
 * Agronak gro-Malog – Primary antagonist of the Arena questline.
 * Frathen Drothan – Primary antagonist of the Mehrunes' Razor plug-in.
 * Black Brugo – Primary antagonist of Knights of the White Stallion.
 * Selene – Primary antagonist of "An Unexpected Voyage."

Skyrim

 * Silver Hand – Primary antagonists of the Companions questline.
 * Ancano – Primary antagonist of the College of Winterhold questline.
 * General Tullius – Primary antagonist of the Civil War questline if one sided with the Stormcloaks.
 * Ulfric Stormcloak – Primary antagonist of the Civil War questline if one sided with the Legion.
 * Mercer Frey – Primary antagonist of the Thieves Guild questline.
 * Commander Maro – Primary antagonist of the Dark Brotherhood questline.
 * Ildari Sarothril – Primary antagonist of the House Telvanni questline.
 * Olaf One-Eye – Primary antagonist of the Bards College questline.
 * Vals Veran – Primary antagonist of "Ancestral Worship."
 * Silvia – Primary antagonist of "Repentance."
 * Haldyn – Primary antagonist of "Rise in the East."
 * Thonar Silver-Blood – Primary antagonist of "The Forsworn Conspiracy" and "No One Escapes Cidhna Mine" if Madanach was followed.
 * Madanach – Primary antagonist of "No One Escapes Cidhna Mine."
 * Malkoran – Primary antagonist of "The Break of Dawn."
 * Orchendor – Primary antagonist of "The Only Cure."
 * Sebastian Lort – Primary antagonist of "A Daedra's Best Friend."
 * Lu'ah Al-Skaven – Primary antagonist of "A Love Beyond Death."
 * Calixto Corrium – Primary antagonist of "Blood on the Ice."
 * Curalmil – Primary antagonist of The White Phial.
 * Jaree-Ra – Primary antagonist of Lights Out!.
 * Potema Septim – Primary antagonist of "The Man Who Cried Wolf" and "The Wolf Queen Awakened."
 * Movarth Piquine – Primary antagonist of "Laid to Rest."
 * Jyrik Gauldurson – Primary antagonist of "Forbidden Legend."
 * Vokun – Primary antagonist of "A Scroll For Anska."
 * Kvenel the Tongue – Primary antagonist of "Silenced Tongues."
 * Pale Lady – Primary antagonist of "The Pale Lady."
 * Hevnoraak – Primary antagonist of "Evil in Waiting."
 * Brand-Shei – Primary antagonist of "A Chance Arrangement."
 * Maven Black-Briar – Primary antagonist of "Promises to Keep."
 * Captain Valmir – Primary antagonist of "Siege on the Dragon Cult."
 * Kematu – Primary antagonist of "In My Time of Need."
 * Northwatch Interrogator – Primary antagonist of "Missing in Action."
 * Arvel the Swift – Primary antagonist of "The Golden Claw."
 * Malyn Varen – Primary antagonist of "The Black Star."
 * Champion of Boethiah – Primary antagonist of "Boethiah's Calling."
 * Chief Yamarz – Primary antagonist of "The Cursed Tribe."
 * Silus Vesuius – Primary antagonist of "Pieces of the Past."
 * Logrolf the Willful – Primary antagonist of "The House of Horrors."
 * Brother Verulus – Primary antagonist of "The Taste of Death."

Online

 * Sheogorath (main antagonist of the Mages Guild questline).
 * Aelif (main antagonist of the Fighters Guild questline)
 * Ulondil (main antagonist of the Khenarthi's Roost region)
 * High Kinlady Estre (main antagonist of the Auridon region)
 * Naemon (main antagonist of the Grahtwood and Greenshade regions, as a Lich in Greenshade)
 * The Hound (main antagonist of the Malabal Tor region)
 * Javad Tharn (main antagonist of the Reaper's March region)
 * Bhosek the Bloody (main antagonist of the Stros M'kai region)
 * Vardan (main antagonist of the Betnikh region)
 * Angof the Gravesinger (main antagonist of the Glenumbra region)
 * Vaermina (main antagonist of the Stormhaven region)
 * Baron Wylon Montclair (main antagonist of the Rivenspire region)
 * Shiri and Suturah (main antagonists of the Alik'r Desert region)
 * Septima Tharn (main antagonist of the Bangkorai region)
 * General Vette (main antagonist of the Bleakrock Isle and Bal Foyen regions)
 * Balreth and Sadal (main antagonists of the Stonefalls region)
 * Magistrix Vox (main antagonist of the Deshaan region)
 * Ruuvitar (main antagonist of the Shadowfen region)
 * Fildgor Orcthane (main antagonist of the Eastmarch region)
 * Thallik Wormfather (main antagonist of the Rift region)
 * The Exalted Viper (main antagonist of the Craglorn region)