!!Selene
[[quoteright:338:http://static.tvtropes.org/pmwiki/pub/images/seleneunderworld1_3225.jpg]]
The main protagonist of the series. Selene is a vampire and one of the best Death Dealers in the FurAgainstFang war, believing that her family were slaughtered by werewolves. She was turned by Viktor because she reminded him of his deceased daughter Sonja. She is a skilled marksman and fighter, making her probably the most prominent {{Badass}} in the series.

She has a change of heart when she falls in love with human turned werewolf Michael Corvin, and is responsible for [[spoiler:turning Michael into a HybridMonster]]. She finds out that [[spoiler:Viktor killed her family, and she kills him by slicing his head in two]]. In ''Evolution'', she [[spoiler:learns her family built William's tomb, hence why Viktor killed them]], and [[spoiler:becomes a true immortal after drinking Alexander Corvinus' blood, and kills Marcus.]]
* AbsurdlySharpBlade: [[spoiler:Selene used one to slice Viktor's head in two.]]
** Subverted in ''Evolution'' when Selene uses a [[spoiler:downed helicopter's propeller to kill Marcus.]]
* ActionGirl: Although, creator Len Wiseman instructed Kate Beckinsale not to use [[Franchise/{{Terminator}} Sarah Connor]] or [[Franchise/{{Alien}} Ellen Ripley]] as a basis for her role; but [[Film/LAConfidential Officer Bud Wight]] instead.
* [[AntiHero Anti Heroine]]: [[NominalHero Nominal Heroine]] at first, graduates to [[UnscrupulousHero Unscrupulous Heroine]] , or a rather dark [[PragmaticHero Pragmatic Heroine]]. And descends ''rapidly'' back down in the opening sequence of ''Awakening.''
* {{Badass}}
* BadassLongcoat: Of the leather variety. In ''Awakening'' she makes a point to break into a store ''so she can get a new longcoat''. This one isn't made of leather, so she ditches it when she comes across a leather one.
* BattleCouple: With Michael.
* BottomlessMagazines: Played with. She does reload, but not as often as she should.
* CuteLittleFangs: First seen when she bites Michael to make him a vampire. ''Awakening'' shows the first time she uses them to drain a person, who had just shot her in the head. It heals the wound, and rejuvenates her.
* DarkActionGirl
* DefectingForLove: First she is a merciless werewolf killer, but then becomes a heroic badass and girlfriend to a werewolf.
* DefrostingIceQueen: Towards Michael in the first movie. And pretty much only towards Michael; the rest of her people skills are somewhere around Viktor's.
* {{Fanservice}}: Most of Selene's outfit are made out of leather.
* GeneticMemory: Selene has forgotten memories of her life before her family's slaughter, which prove to be a key plot point in ''Evolution''. Justified, she's over 600 years old.
* TheGunslinger
* GunsAkimbo: Her preferred fighting style.
* HellBentForLeather
* IceQueen
* [[ImmortalHero Immortal Heroine]]: As a vampire she can be killed, until she drinks Alexander Corvinus' blood and becomes a proper immortal.
* [[InvincibleHero Invinicble Heroine]]: The case can be made for this, as she almost never takes any real damage when compared to other characters, up to and including ''Michael'' who is supposed to be the ultimate fusion of the two species and was briefly killed before resurrecting, and ''Alexander Corvinus'', from whom she gets upgraded to the point that Michael's hybrid state may as well have been a child's toy compared to Selene's power being equivalent to creating Superman in a lab. She's virtually unstoppable to begin with just in the first film. It just snowballs on from there as she's pretty much a God by the time of the fourth film.
* JerkWithAHeartOfGold
* LadyOfWar: Who said gunslinging can't be elegant?
* [[spoiler:MamaBear]]: [[spoiler:Though she was surprised to learn she had a daughter, she unsurprisingly becomes very protective of her.]]
* [[LikeASonToMe Like A Daughter To Me]]: To Viktor for most of her existence as a vampire, until the events of the first movie.
* MeaningfulName: Selene means "moon".
* NotSoStoic
* OfCorsetsSexy: Selene wears a corset over her catsuit. The sequel implies that the corset has an actual function: being bullet-resistant, which comes in handy when the character gets buckshot straight to the chest. The corset comes away with only minor damage, and Selene just gets pissed off.
* [[spoiler:PromotionToParent]]
* [[Really700YearsOld Really 600 Years Old]]
* SelfMadeOrphan: She achieves this trope after she [[spoiler:kills Viktor.]]
** Subverted, since thanks to him, she already was an orphan.
* StarCrossedLovers: Selene and Michael, mirroring Lucian and Sonja's romance.
* SuperStrength: She had vampire's strength in the first two films but when she [[spoiler:drank Alexander Corvinus' blood and became an Corvinus strain immortal vampire, her strength went up higher then before. Notably, she ''shoulder-checks a van'' in the third film with enough force to flips it.]]
* SuperpowerLottery: [[spoiler:Thanks to drinking Alexander Corvinus' blood,]] not only she has much more higher inherit vampire powers, but she can endure sunlight and by the third film, [[spoiler:she can pour re-start hearts after cutting open her palm and then re-starting the heart]].
* ViolentlyProtectiveGirlfriend: Hurting or killing Michael can result in Selene decapitating you or having your body ripped to shreds.

!!Michael Corvin
[[quoteright:320:http://static.tvtropes.org/pmwiki/pub/images/38586-26914_9017.gif]]
A descendant of Alexander Corvinus, Michael is an ordinary nurse until he becomes the target for the Lycans to create the first vampire/lycan hybrid. He is turned into a werewolf by Lucian and later is bitten by Selene to heal him from gunshot wounds. He is turned into a hybrid, becoming one of the series' many {{badass}}es. He becomes Selene's boyfriend and currently [[spoiler:one of two people to still be alive in the series, the other being Selene.]]
* {{Badass}}: When allowed to be. Sadly, he doesn't get to show off his abilities much since the series is focused so much on Selene. He's supposed to be the strongest creature that could exist in the Underworld franchise, but that gets thrown out the window ''very'' quickly in favor of Selene.
* BattleCouple: With Selene. Only really comes up once or twice in the entire franchise though.
* BigDamnHero: Immediately following his BackFromTheDead moment, he jumps out of an airborne helicopter in time to save Selene by [[ImpaledWithExtremePrejudice driving his bare arm through a lycan's torso]]. If that's not an entrance, I don't know what is.
* BodyHorror: Michael's transformation into a hybrid looks quite painful, especially since he seems to switch between werewolf and vampire several times before his body finally gets the balance right.
* DemotedToExtra: He definitely is this in ''Awakening'', seeing as he is practically non-existent in the film aside from one flashback and a single scene where he's shown encased in ice. But one can make the argument that this is also true in ''Evolution'' as well, as he's taken out of focus for the better part of the middle-to-latter half of the movie, when he finally pops up again to raise some hell. Though to be fair, he was technically dead for a good part of that.
* HospitalHottie: Is a medical intern in the first film, before he goes on the run with Selene.
* HybridMonster: He turns grey and he gets black eyes.
* TheLancer
* LightningBruiser
* LivingMacGuffin: In the first movie. His status is revoked entirely by the second film and by the fourth, he's practically non-existent as a character.
* TheLostLenore: Implied in the theatrical cut, confirmed in the director's cut. His wife was killed in a car crash, he became a doctor afterward and moved to Prague (the supposed setting) for a fresh start.
* LegoGenetics / MagicGenetics: Michael is the only descendant of Alexander Corvinus who has the same blood type as his, allowing Lucian and Selene to turn him into a vampire/werewolf hybrid.
* NiceGuy
* NonActionGuy: For the majority of the first movie, until he becomes a HybridMonster and TookALevelInBadass.
* NotQuiteDead: Michael is seemingly [[spoiler:killed by Marcus]], but is revealed to be alive.
* [[spoiler:PromotionToParent]]
* PutOnABus: In ''Awakening'', Michael is seemingly killed, but revealed to be frozen in Antigen's labs, only to escape and disappear.
* SingleSpecimenSpecies: ''Technically'' the first hybrid ever in the millenium-plus existence of vampires and lycans (the unborn child of Lucian and Sonja would have been one), until Marcus also turns into a hybrid... then Marcus dies leaving Michael the only hybrid in existence. If you want to get technical, this also applied when Marcus was still alive, as Michael is a Lycan hybrid, while Marcus was a Vampire hybrid. Whichever way you look at it, Michael is the first and only of his kind.
** He's not the only hybrid around anymore as of Awakening, but he is the only one of his type of hybrid.
* StarCrossedLovers
* TransformationTrauma
* UnfazedEveryman: At first, doesn't last long...
* UnskilledButStrong: When he becomes a hybrid his unprecedented strength and healing abilities allow him to fight some of the most dangerous beings around. His lack of training bites him in the ass more than once though.
* UnwittingPawn
* TheWatson
* WolfMan

!!Eve (Subject 2)
A young HybridMonster who Selene finds after awakening 12 years after the purge of vampires and Lycans. [[spoiler:Actually the daughter of Selene and Michael.]]
* {{Badass}}: Takes after her parents.
* CreepyChild: When in her hybrid form. Not to mention the first kill she does involves ripping a Lycan's head in two.
** Its ''head''? Eve nearly tore the entire ''thing'' in two.
* CuteBruiser
* GeneticMemory: Can see through the eyes of her parents, and they can do the same in return.
* HybridMonster
* IllGirl: She spent her whole life in a lab and has never drank blood before.
* LivingMacGuffin: The Lycans plan to extract her genetic code to make Lycan clones.
* UnskilledButStrong: Can rip a transformed Lycan apart with her bare hands but obviously has never been in a real fight. [[spoiler:Like father, like daughter.]]

!!Lucian
The first Lycan born with [[OurWerewolvesAreDifferent the ability to turn back into a human]]. Lucian falls in love with Sonja, a vampire, and they become StarCrossedLovers. When Viktor finds out, he has his daughter executed via sunlight, kicking off the war between vampires and Lycans. Lucian [[spoiler:fakes his death with help from Kraven]] and spends the next few centuries trying to find a descendant of Alexander Corvinus who has the right blood to create the first HybridMonster. He succeeds in turning Michael into one with help from Selene, [[spoiler:but is gunned down by Kraven.]]
* AntiHero: Turns out to have been a Type III-IV in the first movie.
* AntiVillain: Type IV. By the end of the first movie, he is a villain only by virtue of being on the opposite side. Unless you're one of the hapless Corvinus descendants he's managed to track down and capture...
* {{Badass}}
* BadassBeard
* BadassLongcoat
* BigNo: When Sonja dies.
* EvilBrit: At first seemed to be, until it turned out he was a good person.
* GoOutWithASmile: Right before [[spoiler:Kraven finishes him]], he gets the satisfaction to see Selene bit Micheal, turning him into a Hybrid just as he wanted.
* IncomingHam: "You are acting like a pack of rabid DOGS!!! And that gentlemen, simply will not do."
* LargeHam
* MichaelSheen
* MrFanservice
* OnlySaneMan: Only sane Lycan.
* OurWerewolvesAreDifferent: He is the first Lycan born as a human with the ability to turn back into his human form.
* PapaWolf: Literally.
* PatrickStewartSpeech: His speech to his fellow Lycan slaves fits this trope.
* PunctuatedForEmphasis:(crossing over with ChewingTheScenery)
** "WE CAN BE SLAVES, OR WE CAN BE LYCANS!"
** "I'LL KILL YOU! ALL OF YOU!!!"
** "You are acting like a pack of rabid DOGS!!!
* WellIntentionedExtremist: Lucian has killed generations of Alexander's descendants to find one whose blood can mix both werewolf and vampire blood, in order to avenge his dead lover and unborn child.
** Also, it must be stressed, to prevent the vampires from ''wiping out his species''.

!!Viktor
The BigBad of the series. Viktor is one of the [[PowerTrio three Vampire Elders]], and the foster father of Selene. Having FantasticRacism against Lycans, Viktor went to great lengths to either control or kill them including killing his own daughter Sonja when she became impregnated with a vampire/Lycan hybrid.
* {{Badass}}
* BadassLongcoat
* BattleCry: In ''Rise of the Lycans'' - "KILL THE DOGS!"
* DelayedCausality: [[spoiler:Viktor's death invokes this trope, which Viktor staring blankly at Selene before the top part of his head slips off.]]
* DiagonalCut: [[spoiler:His cause of death.]]
* DualWielding: After losing his sword he whips out a pair of hidden daggers from his sleeves. Subverted as he never gets to use them.
* FantasticRacism: Viktor despises the werewolves, and considers a hybrid to be an abomination.
* HiddenInPlainSight: Viktor hid the keys for William's tomb in plain sight, one being a necklace owned by Sonja, and the second [[spoiler:hidden ''inside'' his own body.]]
* HoistByHisOwnPetard / IdiotBall: Viktor's plans keep coming back to hit him in the face. He creates an army of Lycans; they rebel. He kills Sonja and her child; Lucian swears revenge and makes a new hybrid. He turns Selene into a vampire; she [[spoiler:kills him]]. What a tangled web we weave.
** More immediately on the HoistByHisOwnPetard front, the sword that Selene used to kill Viktor was Viktor's.
* IDidWhatIHadToDo / WellIntentionedExtremist: Subverted. Viktor honestly thought he was doing what was best for the coven, but every last one of Viktor's actions (deceiving Markus, imprisoning William, killing Sonja, murdering Selene's family and turning Selene into a vampire, etc.) directly or indirectly leads to the vampires being all but wiped out by the fourth movie.
* IdiotBall: He pretty much ran with this one (see above), but punching Singe to death and not having his bleeding body immediately removed will forever be a classic.
* IHateYouVampireDad: Sonja and Selene both suffer this. Viktor is shown to be devastated by having to kill Sonja.
** He wasn't all too happy about possibly having to kill Selene, either. His immediate reaction after hurling her halfway across a room, for instance...
* LargeHam
* ManipulativeBastard: Viktor managed to fool all the vampires into thinking that ''he'' is the first vampire in existance, imprisoned William for all time and went to extra lengths to ensure Marcus couldn't stop him - which failed ''spectacularly''. Not to mention making Selene think her family was killed by Lycans for 600+ years.
* NiceJobFixingItVillain: Two instances- killing Sonja was what started the war in the first place. Not believing Selene results in his worst fear being recognized in the form of a hybridized Michael Corvin ''and'' his death.
* OffingTheOffspring: X's two, since he killed his only child ''and'' his unborn grandchild. And then he has the audacity to [[MoralEventHorizon accuse Lucian of doing the deed to his face]], knowing ''damn'' well that Lucian witnessed the murder himself and, being physically chained, was unable to even ''touch'' her.
* ParentalSubstitute: Was this to Selene for centuries, until the first movie.
** BrokenPedestal
* SarcasmMode
* SmugSnake
* TheStarscream: To Marcus.
* SuperStrength: As an Elder Vampire, he's a fair bit stronger than regular vampires and werewolves, as shown when he does a NeckLift on a transformed werewolf, which leads into a NeckSnap. He can even match the hybridized Michael Corvin, though Corvin is a lot faster.
* UngratefulBastard: Marcus comes to Viktor while the latter is on his death bed and grants him immortality. How does Viktor repay him? By wresting control of the coven away from Markus, indefinitely imprisoning Markus's brother, and having the vampires' history rewritten so that Viktor, not Markus, is the first and most powerful of the vampires.
** Lucian transforms into Lycan form to save Sonja from becoming werewolf kibble. Viktor's response to this is to have him publicly flogged to near-death for removing the slave collar that would have prevented said transformation. Mind you, he gave Sonja a brief lecture earlier about showing gratitude to Lucian for saving her life. When she [[CallingTheOldManOut calls him on it]] he responds that letting Lucian live ''is'' his gratitude...
*** ...and then decides to have Lucian killed anyway as a cautionary tale to any would-be upstarts.
** Selene potentially all but saved Viktor, and the coven, from certain doom by breaking the Chain and making him aware of her concerns. After literally centuries of her UndyingLoyalty to him, Viktor refuses to hear any of it and orders her judged (which would almost certainly result in her death). After Selene acquires undeniable proof for her suspicions, Viktor refuses to absolve her unless she kills Michael, who's totally innocent and only the "enemy" by being turned against his will.
* WellIntentionedExtremist: In his view, everything he did was to protect the species and the coven.
** Never mind the fact that he used subterfuge to gain control of said coven.
*** See IDidWhatIHadToDo above.
** Not completely without justification in Michael's case; the hybrid issue aside, Viktor probably just wants to avert what happened the last time a descendant of Corvinus got infected with lycanthropy.
!!Amelia
The second of the Vampire Elders. Hardly anything is known about her, making her a bit of a FlatCharacter. However, she aided Marcus and Viktor in catching William and sided with Viktor to imprison him forever.
* {{Badass}}: As seen in ''Evolution''.
* DarkActionGirl
* DarkChick
* DoomedByCanon
* LadyOfWar

!!Marcus Corvinus
The third Vampire Elder, and son of Alexander Corvinus. He was bitten by a bat and became the first vampire. With his Lycan brother William out of control, Marcus recruited Viktor, Amelia and their army to catch his brother, only for Viktor to double-cross him and take control of the vampires and imprisoned William forever. In the second film, he is turned into a hybrid and vows to free his brother and rule the world with a new series of hybrids.
* AngstySurvivingTwin: Is this for a short time, as he gets killed not long after William's death, but that scream he does when William dies is proof enough.
* AffablyEvil: While he gets the idea to rule the world with hybrids, his main goal is to reunite with his beloved brother.
* AGodAmI: Intends to create a new race of immortals, with himself as their God.
* {{Badass}}: He can bring down a helicopter just by pulling on a rope. However, it leads to his [[spoiler:KarmicDeath.]]
* BatOutOfHell: He has large bat wings in his hybrid form. Whether or not he had these beforehand is unknown.
* BloodBrothers: Marcus and William have a strong bond. They had a third brother who was only human and presumably died years ago.
* GeneticMemory: He can see the memories of others by drinking their blood, something which Viktor could also do (and Selene as well, at least as of ''Awakening''). Selene, Kraven and Andreas Tanis all become victims to his ability.
* HelicopterBlender: [[spoiler:Selene pushes him into the spinning blades of a downed helicopter.]]
* [[IHateYouVampireDad I Hate You Immortal Dad]]
* LineageComesFromTheFather
* SelfMadeOrphan: [[spoiler: Kills his father, Alexander Corvinus, claiming that a [[AGodAmI God]] has no father.]]
* SiblingTeam: Marcus and William.

!!William Corvinus
Alexander Corvinus' second son, and the first werewolf. Unlike Lycans, William could never regain his human form and was imprisoned by Viktor in a tomb, which was built by [[spoiler:Selene's father.]]
* TheDragon: To Marcus.
* [[spoiler:OffWithHisHead]]: [[spoiler:Michael wrenches William's jaw open to breaking point, and then rips his upper head off.]]
* PerpetualMotionMonster: Once he's out of his coffin after over 600 years of imprisonment, he's at full strength. He clearly wasn't in suspended animation.
* SealedEvilInACan: Viktor would've preferred to kill him had he not agreed with Marcus to keep him alive.
* SiblingTeam: William and Marcus.

!!Alexander Corvinus
[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/underworld2_06_7422.jpg]]

WhereItAllBegan, Alexander Corvinus became the first true immortal after his village was ravaged by a plague which he was able to mold into what gave him his immortality. He then fathered three sons, Marcus, William and a third son. Marcus and William were bitten by a bat and a wolf, becoming the first vampire and werewolf, leading to the rest of the events in the films. The third son remained human, but carried the Corvinus Gene that would later lead to Lucian's quest to find a descendant who could adapt to vampire and Lycan blood.

* AlmightyJanitor: He's been cleaning up the chaos the vampires and Lycans have been causing for centuries.
* BigGood
* CleanupCrew
* CoolBoat
* GoBackToTheSource: Selene and Michael visit Alexander, as does Marcus shortly after.
* TheOlderImmortal: The oldest character in the films.
* PassingTheTorch: To Selene and Michael.
* WhereItAllBegan

!!Sonja
The daughter of Viktor, and Lucian's lover. The two were the original StarCrossedLovers, Sonja becoming impregnated with the first hybrid. Viktor was distraught when he found out and regretfully had her executed via sunlight, kicking off the war. Lucian stole her necklace, actually one of the keys to William's tomb.
* CruelAndUnusualDeath: Poor Sonja.
* DeathByOriginStory
* DoomedByCanon
* FauxActionGirl: Despite being leader of the Death Dealers, Sonja needs to be rescued a lot.
** To be fair, she needs rescuing from overwhelming odds. She did kill three lycans while being chased in the beginning of the film, and she managed to one-up Viktor in their sword fight. And unlike Selene, she didn't have access to automatic firearms.
* ThePresidentsDaughter: She was due to inherit Viktor's status as an elder someday.

!!Kraven
Viktor's [[TheDragon Dragon]], Kraven is in charge of the old coven during Viktor's slumber. A SmugSnake and a ManipulativeBastard, Kraven helped fake Lucian's death to become a hero among the vampires, and to keep Lucian's plan under wraps. Their ultimate agreement is to eliminate the vampire elders, so Kraven can rule the vampires and Lucian can create the hybrid. Kraven has a thing for Selene, despite being in a relationship with Erika.
* BlatantLies: Everything that comes out of his mouth is a lie.
* ChronicBackstabbingDisorder: He does this to everyone (Viktor, Lucian, Erika).
* DirtyCoward
* TheDragon: To Viktor.
* {{Jerkass}}
* KarmicDeath: [[spoiler:Kraven has his head blown off by Marcus whom he tried to kill seconds earlier.]]
* LargeHam: Kraven's reaction to Erika telling him that Michael is a Lycan is downright hilarious.
* ManipulativeBastard
* MeaningfulName: The word "craven" means "coward".
* MrFanservice
* NonActionGuy
* OpportunisticBastard: Kraven has no loyalty to anyone or anything but his own [[AmbitionIsEvil ambition]]. When spared from death by his own [[DirtyCoward cowardice]] at the hands of the Lycan werewolves' leader Lucien, Kraven aligns himself with Lucien's plans to seize power for himself in the vampire covens. Kraven seizes on a chance to allow Lucien's Lycans to massacre the vampire elder Amelia, and when his treachery is exposed, he later betrays and murders Lucien before taking advantage of the resulting power vacuum from the large scale battle at the conclusion of the second film to attempt to murder the final sleeping vampire elder and rule the coven. Lacking his own plans, Kraven simply ingratiates himself to whoever is in power for his own success and has no compunction taking any chance fate gives him in pursuit of it.
* SmugSnake
* StalkerWithACrush: He's quite obsessive over Selene.
* TheStarscream: To everybody. He teamed up with Lucian to defeat the vampire elders, and then turned on Lucian. [[spoiler:He's eventually RewardedAsATraitorDeserves by the last elder Markus, who caught on to this act.]]
* [[spoiler:SuddenSequelDeathSyndrome]]: Especially considering most fans were expecting him to be the villain opposite a heroic Marcus.

!!Raze
Lucian's closest friend and a ScaryBlackMan. He became a Lycan in ''Rise of the Lycans'' and helped Lucian fight back against their vampire suppressors. He has a rivalry with vampire Soren going back to their earliest days. And yes, his voice is actually that deep.
* BadassBaritone: Raze's deep voice is actually that deep.
* BadassNormal: Back when still human. First thing he does when confronted with one of the wild and feral Werewolves? Punches the damn thing down.
* TheBigGuy / TheLancer: To Lucian.
* CreatorCameo: Raze is played by Kevin Grevioux.
* ScaryBlackMan

!!Andreas Tanis
Formerly the historian of the vampire coven, Andreas Tanis was exiled on Viktor's orders, by Selene, for telling "[[BlatantLies malicious lies]]". [[spoiler:Which as Selene later points out, means he was telling the truth.]]
* TheExile
* MrExposition: Well, he is the vampire historian.
* TheSmartGuy
* TechnoWizard: Built weapons for Lucian after he was exiled.

!!Kahn
Selene's BlackBestFriend, Kahn is the weapon's specialist in the coven and head of security. He clashes with Kraven, and is just as suspicious of him as Selene is. He is a skilled marksman and inventor, replicating the Lycans' sunlight weapon with silver bullets which can harm Lycans on the genetic level.
* {{Badass}}
* BlackBestFriend: He's the only vampire Selene gets on with without any hostilities.
* BlackDudeDiesFirst
* NiceGuy
* TechnoWizard

!!Erika
Kraven's one-and-off girlfriend, Erika is pretty much used by Kraven for sexual tension and he treats her like dirt whilst pining after Selene. Erika discovers Michael is a Lycan and tells both Selene and Kraven. Erika ditches Kraven and frees Selene from her imprisonment to get back to Kraven. Her fate afterwards is unknown. In the novelization, she and Selene have a somewhat tenuous friendship, and it's mentioned that she left the mansion and "wondered if Viktor liked blondes."
* ClingyJealousGirl: She gives this up eventually.
* CuteLittleFangs: While clinging to the ceiling. And hissing like a deranged cat.
* FriendVersusLover: Selene, who is her friend and love interest for Kraven (although Selene doesn't want to be).
* WhatHappenedToTheMouse: Erika never appears in ''Evolution'' aside from a flashback cameo, so it's assumed Marcus killed her when he destroyed the coven.

!!Singe
A scientist Lycan, Singe has spent years trying to find the right carrier of the Corvinus strand, and is at his wit's end. Lucian delivers him Michael's blood and he is proven a carrier. Singe is sent to help retrieve Michael from the vampires but is captured by Selene and forced to reveal Lucian's plan and Kraven's treachery. After Amelia is killed, Viktor punches him to death. [[spoiler:His split blood leads to Marcus turning into a hybrid.]]
* ChekhovsGun:
** [[spoiler:His blood turns Marcus into a hybrid.]]
** Selene recalls Singe mentioning the hybrid's creation and follows his advice to turn Michael into a hybrid.
* MadScientistLaboratory
* MegatonPunch: Viktor delivers one that kills Singe instantly.
* OmnidisciplinaryScientist: Singe is a skilled scientist in biology, genetics and medicine, not to mention espionage.
* ReluctantMadScientist: He's a bit tired of doing his experiments, but still is a mad scientist by chaining Corven family members up.

!!Soren
Kraven's minion and once Viktor's bodyguard. Little is known about him, but he has a rivalry with Raze. He uses a pair of whips in battle, and is killed by Raze.
* {{Evil Minion|s}}
* TheRival: To Raze.
* WhipItGood: Enhanced by combining it with a dose of DualWielding. Of note, his whips appeared to be silver and razored

!!David
Introduced in ''Awakening'', David is a survivor of the Purge. TheIdealist of the film, David aids Selene, willingly helping her and Eve escape the humans and Lycans. He believes the vampires should honor their predecessors and fight back, being at odds with his father Thomas.
* [[spoiler:BackFromTheDead]]: [[spoiler:Killed by Lycans, but is resurrected by Selene when she cuts open her palm and then ''forcefully using her hand and immortal blood to restart his heart''.]]
* [[spoiler:BigDamnHeroes]]
* IHateYouVampireDad: He is at odds with his father Thomas, the local WellIntentionedExtremist, who wishes to hide away to survive instead of fighting back.
* SuspiciouslySimilarSubstitute: To Kraven just without any {{Jerkass}} tendencies and like Michael, [[spoiler:serves as a possible LoveInterest to Selene and comes back from the dead]].
* TheIdealist
* TheLancer: To Selene since Michael is unavailable. Shared with Detective Sebastian.

!!Detective Sebastian
The first human since Michael to become a prominent character in the films. A police detective who pities the vampires and Lycans, Sebastian teams up with Selene to take down Antigen to save Eve and avenge his dead vampire wife.
* {{Badass}}: Single-handily launches a one-man assault against Antigen, kills a guard with a rocket launcher, helps stop a van carrying off Eve, tries to fight the BigBad, and survives with the intention to cover Selene.
* BlackBestFriend: Carrying on Kahn's legacy.
* [[spoiler:DrivenToSuicide / SuicideBySunlight]]: [[spoiler:His wife, a vampire, willingly walked out into daylight and killed herself so he would not have to see her be murdered during the Purge.]]
* FairCop
* TheLancer: To Selene, shared with David.
* OneManArmy: And ''how''! See Badass above.
* SuperCop: Of the BadassNormal type. He is like [[Film/{{Commando}} John Matrix]] of Underworld.

!!Doctor Jacob Lane
Chief scientist at Antigen, Jacob Lane kept Selene, Michael and Eve as test subjects to find an antidote. [[spoiler:Actually a Lycan hoping to create an antidote to silver.]]
* BigBad: Of ''Awakening''.
* ForScience
* MadScientist
* [[spoiler:SlashedThroat: Eve tears his throat out.]]
* WellIntentionedExtremist: He comes off as one, wanting to protect humanity from Lycans and vampires. [[spoiler:Turns out he's a lycan, and what he wants is to wipe out vampires and have Lycans become dominant.]]

!!Quint
A wolf known as the Uber Lycan, Quint kidnaps Eve so Dr. Jacob Lane can use her to create [[spoiler:an army of Lycans, and is actually being Lane's son.]]
* ActorAllusion: Quint is played by Kris Holden-Reid, who plays a werewolf named Dyson in ''Series/LostGirl''.
* CanisMajor: A huge Lycan.
* TheDragon: To Dr. Lane.
* HealingFactor: A pretty powerful one. His wounds heal almost instantly, giving him an almost immunity to silver.
* [[spoiler:HoistByHisOwnPetard: Doomed by his own HealingFactor]].
* [[spoiler:InsertGrenadeHere]]: [[spoiler:Selene shoves a grenade into Quint's body just as he heals his wounds.]]
* PainfulTransformation: A side-effect of the treatments that made him so large seems to be that he can't transform seamlessly like most Lycans.
* SlasherSmile: Quint does this in his Uber-Lycan form... twice.