![+Beggar Team+]
!Kim Yun-Seong - "Mr. Beggar"
A man in his early 30's who discovered he has gained Trace abilities. His Trace power is iron legs, which allow to use powerful kicks that destroy walls and make him leap great distances. He is the leader of the Beggar Team.
[[hardline]]
* AnimalMotifs: Yun-seong's motif is the white tiger.
* {{Badass}}: Oh, so very much.
** BadassLongcoat
* BigDamnHeroes: Constantly.
* BioAugmentation
* CoolMask
* [[spoiler: CrusadingWidower]]
* TheDeterminator
* FatherToHisMen
* {{Flight}}
* TheHeart
* HeroWithBadPublicity
* {{Heroic BSOD}}
* InASingleBound
* IronWoobie
* MadeOfIron
* OnlyKnownByTheirNickname
* SuperpowerLottery: His power is arguably the most powerful and versatile in the series.
* SuperStrength
* TheDreaded: Becomes one over the course of the first part, and mooks are pronouncedly advised to run when he shows up.
* TheUnfettered

!Jeong Hee-sub - "Pierrot"
Hee-sub was the original leader of Trace Cirus. His power is to phase through solid matter. It was he who put together a team of traces for the purpose of exposing the government corruption in one of it's trace programs.
[[hardline]]
* TheChessmaster
* CrazyAwesome
* CrazyPrepared
* GoodScarsEvilScars
* [[spoiler: KilledOffForReal]]
* ParentalIssues: Hee-sup has some serious issues with his father. Very ''serious'' issues.
* TheTrickster

!Ryu Jee-hyun
A normal human woman, although trace abilities may be present, she has yet to show them. She supports Kim Yun Seong.
[[hardline]]
* GenkiGirl
* {{Muggles}}
* WrenchWench
* YouGottaHaveBlueHair

!Morrienoah Jin - "Mist Sniper"
A Trace who has the ability to shoot bullets out of his fingers. Each one can shoot out a different kind of bullet.
[[hardline]]
* AbnormalAmmo
* ArmorPiercingAttack
* ColdSniper
* CurbStompBattle
* DoesntLikeGuns
* MrFanservice
* ImprobableAimingSkills
* LongHairedPrettyboy
* ParentalAbandonment
* [[spoiler: ThanatosGambit: Was a target of one prior to the story, which made him quit working as a killer.]]
* TheStoic
* {{Tsundere}}
* YouGottaHaveBlueHair

!Gang Dong-su - "G-Spot"
A trace with the X-Ray vision, making him an incredible gambler. He's often paired with Jin to help him shoot targets that Jin can't see.
[[hardline]]
* ConMan: Prior to join the Beggar team he conned gamblers by cheating with his trace power.
* EyesWideShut
* OvershadowedByAwesome
* SuperSenses
* {{X-Ray Vision}}

!Cha Mi-ri - ''Power Bunny''

A Teenage trace with incredible strength.
[[hardline]]
* AnimalMotifs: The bunny
* BoisterousBruiser
* CuteBruiser
* TheDitz
* GenkiGirl
* IdiotHair
* MadeOfIron
* PersonalityPowers
* SuperStrength
* SuperToughness: She is able to shake off being frozen by Ghang Gwon's powers like it was nothing.

!"Mr. Zombie"
[[hardline]]
* {{Buttmonkey}}
* OnlyKnownByTheirNickname
* SuperToughness

!Kim Do-gyun - "The Masked Five Brothers"
A trace who uses his ability to make clones of himself to become the most renowned thief in history.
[[hardline]]

!Kim Poong
The newest member of the Beggar Team, used to work for the government.
[[hardline]]
* BigDamnHeroes: [[spoiler: Comes just in time to save Kim Yun-Seong from being massacred by Jeon Tae Soo.]]
* {{Bishonen}}
* BlowYouAway
* {{Flight}}
* HeelFaceTurn
* TheMenInBlack
* RazorWind

!K4
K4 is a team of a young assassins that Jin recruits for the Beggar Team.
[[hardline]]
* CloudCuckoolander: The team as a whole.

!Wong Soong-ih
%%put bio here
[[hardline]]
* AnimalMotifs: A monkey.
* WeaponOfChoice: The staff.

!Dok Soo-ri - Gray Talon
%%put bio here
[[hardline]]
* AnimalMotifs: An eagle.
* ImprobableAimingSkills
* KnifeNut

!Gang Ah-ji - Black & White Hole
%%put bio here
[[hardline]]
* AnimalMotifs: A dog.
* PerpetualFrowner
* TeleportersAndTransporters: Ah-ji's power is to make portals.

!Geo Boog-ih - Speed Boom
%%put bio here
[[hardline]]
* AnimalMotifs: A turtle.
* CoolMask
* DudeLooksLikeALady
* SlasherSmile
* SleepyHead: Much to the chagrin of the rest of K4.
* SuperSpeed

![+Team Misty+]
Misty is the team that Ghang-gwon forms so that they can capture Yun-seong.
!Sa Ghang-gwon
%%put bio here
[[hardline]]
* AngerBornOfWorry
* AnIcePerson
* [[spoiler: DecoyProtagonist]]
* PersonalityPowers
* ParentalAbandonment: When he first gained his powers, he killed his father and his mother ran for her life.
* TheWoobie

!Lee Hyun-Hwa
%%put bio here
[[hardline]]
* BodyHorror
* [[spoiler: TheMole]]

!Lee Hyan-Woo - The Shooting Star
%%put bio here
[[hardline]]

!Im Geong Jin - Stopper
%%put bio here
[[hardline]]

!Oh Won Young
%%put bio here
[[hardline]]
* BarrierWarrior

![+Others+]
!Han Tae-eun
Hot-blooded and fiery, Han Tae Eun is well known in her school as a formidable fighter, more inclined to her fists than talking things through. She yells often, especially at Sa Ghang Gwon when he aggravates her. As a child her mother was killed by a Trouble in a park, and Tae Eun repeatedly visited the same spot her mother died, until she found a barely-conscious Sa Ghang Gwon lying there. She took him home and adopted him as her possession. At some point in time, she discovered he was a Trace and labored to protect his identity, unbeknownst to him.

When Ghang-gwon is taken away by the government, Han Tae-eun declares that she will become a Trace and be like him. She repeatedly battles Troubles at the expense of her own life, but then she awakens as a Trace. Her arms turn a sparkling red and shoot sparks, granting her inhuman strength and abilities. It seems that she needs to repeatedly punch hard objects like the ground to activate one of her arms, but if she strikes her fists together, the other arm will ignite.

Tae-eun is easily angered and irritable but also fiercely protective of Ghang-gwon. She protects him specifically to prevent him from fighting back, so that he won't accidentally reveal his identity as a Trace. She seemed to resent that he was a Trace while she wasn't and accused Ghang-gwon of the same feelings, since he tried to hide his true identity from her. She's stubborn, believing that if she fought Troubles, she would become a Trace. After she becomes one, she goes about fighting Troubles, in the same way Ghang-gwon did (dressed with a face mask). Tae-eun seems to hold romantic feelings for Ghang-gwon, getting jealous when he carries Se Yeon and tells Tae-eun to run while escaping a Trouble.

* AngerBornOfWorry
* BrownEyes
* ElementalPunch
* HotBlooded
* MissingMom
* PersonalityPowers
* SuperStrength

!Kim Soo Huyk
%%put bio here
[[hardline]]
* BioAugmentation
* MakeMeWannaShout

!Jeon Tae Soo
%%put bio here
[[hardline]]
* ApologeticAttacker
* BewareTheNiceOnes
* BigBrotherInstinct
* TheBigGuy
* BioAugmentation
* BloodKnight: Once a fight starts, there is nothing that can change his goals.
* ChromeChampion
* EmotionalBruiser
* FaceHeelTurn: Becomes the leader of Han-Jo's "trace" police program, as his family is being "watched," effectively controling him.
* FriendToAllChildren
* ImplacableMan: The whole Beggar Team gangs up on him. It doesn't even slow him down.
* LightningBruiser
* SuperStrength
* SuperToughness: Can take hits from Cha Mi Ri like they were nothing.
* TheJuggernaut

!Zhang Se-yeon
%%put bio here
[[hardline]]
* {{Muggles}}

!Jang-mi Rose
%%put bio here
[[hardline]]
* DisappearedDad

!Park Mahn Gil/Anchovy
%%put bio here
[[hardline]]
* BlessedWithSuck: Most traces get awesome powers, Maha-gil has the ability to take someone's sickness and suffers with it for a year. This ''includes'' terminal diseases. However, the disease won't kill him and will inflict a lot pain before the disease passes.

!Morrie
%%put bio here
[[hardline]]
* BadassGrandpa
* BenevolentBoss
* {{Mentor}}: Morrie was the one who taught Jin to be an assassin.
* {{Muggles}}
* OldMaster
* RetiredBadass: You have no idea.

![[spoiler:God's Virus]]
%%put bio here
[[hardline]]
* {{Chessmaster}}
* CreepyChild
* MysteriousPast
* MysteriousWatcher

!Han Sihyun
%%An NIS researcher, whose body constantly secretes D&D, a unique substance with addicting properties, while it shortly empowers physical capabilities.
[[hardline]]
* AbusiveParents: Not by choice, as they became addicted to D&D.
* DarkAndTroubledPast
* FantasticDrug
* HiddenBadass
* ICantBelieveItsNotHeroin
* LightningBruiser
* PoisonousPerson
* PsychoSerum
* SuperStrength

!Sarang
%%A Trouble that was caught in one of Han Sihyun's drug-induced trips, and after time became very close.
[[hardline]]
* CryForTheDevil

!Jung-Eun
%%A suspicious student who spied on Han Sihyun, with a Trouble, Jung-Kill, living inside of her body..
[[hardline]]
* DualWielding: Actually quadruple as she uses Jung-Kill's arms too.
* HeroicHost: Has a Trouble living inside of her body, and is able to control its parts, which come out at will from her movable tattoos.
* TheSymbiote

!Sun Hee-Ji
%%Han Sihyun's secretary at the NIS.
[[hardline]]
* SuperStrength

!Lee Ginsoo
%%Lieutenant of the NIS of the area.
[[hardline]]