!Introduced in Double Dragon

[[folder:Billy Lee]]
The de-facto protagonist of the ''Double Dragon'' series. Successor to the Chinese martial art of Sou-Setsu-Ken. He began his Chinese martial arts training at the age of 12 and went on to master several fighting styles until becoming the Sou-Setsu-Ken successor at the age of 20. Sou-Setsu-Ken is a fighting style that combines the techniques from all sorts of martial arts such as Karate, Shorinji Kempo and Tai Chi into one school.
* AdaptationDyeJob: Blond in the arcade games and Neon, brown hair in both the NES and PC-Engine games. and black hair in the animated series.
** Early concept/promotional art for the original game depicts Billy not only as the darker haired brother, but has him wearing the red outfit instead of blue, which implies that he might been originally intended to be the Player 2 character (before the identities of the Lee brothers were fully established).
* BlueOni
* CainAndAbel: Abel to Jimmy's Cain in the first NES game. This also occurs in the actual arcade game if both brothers defeat Willy together.
* ColorCodedMultiplayer: Billy is blue (except in the second arcade game, where he wore black).
* TheHero: He is the Player 1 character and Marian's official boyfriend, two facts that combined give him a bit more of protagonism than Jimmy. His role is also bigger than Jimmy's in most adaptations.
* JackOfAllStats: In the SNES version, where his fighting style focuses more on flexibility.
* {{Shotoclone}}: In the Neo-Geo game.
* SurferDude: Speaks this way alongside Jimmy in ''Neon''. Very much so [[PlayedforLaughs played for laughs]].

[[folder:Jimmy Lee]]
The older Lee twin, who helps his brother Billy fight the Black Warriors, while being secretly in love with Marian. In the NES version, he is actually the Shadow Boss, the true leader of the Black Warriors, although this plot point is swept aside in the sequels (which brought back the co-op play missing in the first NES game).
* AdaptationDyeJob: Brown hair in the arcade games and Neon, blond in the NES and PC-Engine games and animated series.
** Much like Billy, some of the early promotional art depicts Jimmy wearing blue instead of his usual red.
* AdaptationalVillainy: In the NES version of the first game and the animated series.
* CainAndAbel: Cain to Billy's Abel in the first NES game. This also occurs in the actual arcade game if both brothers defeat Willy together.
* ColorCodedMultiplayer: Jimmy is red (except in the second arcade game, where he wore white).
* CompositeCharacter: In the first NES game, not only serves as the new final boss, but essentially replaces Jeff (the head-swapped Lee brother boss from the arcade version) as the boss who uses all of the player's moves.
* {{Expy}}: ScottMcNeil plays Jimmy in the AnimatedAdaptation. He would also go on to play [[WesternAnimation/StreetFighter another blond martial artist dressed in red from another animated adaptation of a video game movie...]]
* HeelFaceTurn: In #2 of the animated series.
* MightyGlacier: In the SNES version, where his style focuses on pure strength.
* RedOni
* {{Shotoclone}}: In the Neo-Geo game.
* SurferDude: Speaks this way alongside Billy in ''Neon''. Very much so [[PlayedforLaughs played for laughs]]

[[folder:Marian Kelly]]
Billy's girlfriend, who used to be an assistant instructor in their old martial arts gym, but is kidnapped by the Black Warriors. In ''Double Dragon II'', she is seemingly killed off in the beginning, with her ultimate fate varying depending on the version.
* ActionGirl: In the Neo-Geo game.
* AssKicksYou
* [[spoiler:BackFromTheDead: In the NES and PC-Engine ''Double Dragon II'' games.]]
* BoundAndGagged as shown here [[http://static.tvtropes.org/pmwiki/pub/images/image_547.png]]
* [[spoiler: BrainwashedAndCrazy: In ''Neon'' during the first part of the final boss battle.]]
* DamselInDistress
* DamselOutOfDistress: An interview with Kishimoto revealed there was a cut mode for ''Advance'' which had Marian escape using her combat skills in addition to teaming up with Abobo.
* FauxActionGirl: If we are to believe the back-story given in the original game's official soundtrack and some of the console versions, she was formerly an assistant instructor in Billy and Jimmy's old dojo. Seeing how she goes down with only one punch to the gut in the opening of the original game without putting up much a fight, her qualifications for such a job are debatable. Averted by her Neo-Geo incarnation, who does have actual fighting skills.
* GroinAttack: [[spoiler: Gives Skullmageddon one after the end credits in Neon.]]
* [[spoiler: ThePowerOfLove: Uses this in ''Neon'' to send the Lee Bros. to another dimension to face Skullmageddon, as well as [[EmergencyTransformation turning them into Ro-Bros to survive the transition.]]]]
* NeutralFemale: If playing multiplayer in the arcade version, once both players reach the end, they find Marian in UnwillingSuspension. They then fight over her.
* ShesGotLegs: In both the original series and the Neo-Geo fighting game.
* [[spoiler:SparedByTheAdaptation: Marian is revived in the NES and PC-Engine adaptation.]]
* SpellMyNameWithAnS: Marian's name is sometimes spelled "Marion" depending on the game. The manual for the Master System version spells it "Mary-Anne" as well.
* StuffedInTheFridge - The second arcade game begins exactly the same way as the first game... Only instead of being kidnapped, Marian is gunned down to death by Machine Gun Willy. Ouch! [[spoiler: Unlike the NES and PC-Engine versions, she ''stays dead.'']] Same with the computer versions of Double Dragon II.
* TookALevelInBadass: in the Neo-Geo version, where she's not only a selectable fighter, but is one of the higher-tier characters in the roster.
* UnwillingSuspension: In the first game.
* WhoWearsShortShorts: In the Neo-Geo fighting game.

* AmbiguouslyBrown: In many games, Abobo's default skintone is an unclear shade, such as in the IOS depiction pictured above.
* AmazingTechnicolorPopulation: Several variants of him have fantastic skintone. Most notably the original game, and its remakes include a green Abobo, later called Mibobo. Double Dragon Advance had Abobos in a rainbow of colors from Blue to Silver!
* BadassMustache: Abobo's in-game sprite sported a horseshoe mustache in the original game, the arcade game also including a bearded variant. The vs. mode character illustrations for the NES version gave Abobo a clean-shaved look though, giving him an appearance similar to [[VideoGame/GodOfWar Kratos]] or [[StreetFighter Sagat]].
* BaldOfEvil: Abobo is almost always bald, or mostly bald with a mohawk.
* BarrierBustingBlow: Abobo punches through walls.
* BreakoutMookCharacter: Abobo is one of the four most recognizable, and consistent characters[note]Billy, Jimmy, Marian, and Abobo[/note] in the series. Abobo has countless cameos in other media such as Rajiv in ''VideoGame/SuperDodgeBall.'' [[http://doubledragon.kontek.net/features/ddacommentary3.html A mode]] featuring Abobo as playable was almost added to Advance before being cut for time! Finally Abobo is the star of ''VideoGame/AbobosBigAdventure'' which got the creator, Kishimoto, approval. He even makes several appearances in ''VideoGame/RiverCityRansomUnderground'', despite having never been a part of the Franchise/KunioKun canon.
* CatchPhrase: A real weird word, "Chikky!" seems to be Abobo's CatchPhrase, especially in the the Neo-Geo fighting game, and gets carried over in his SpiritualSuccessor Abubo in ''Rage of the Dragons''.
* DumbMuscle: Many adaptations like ''Battletoads & Double Dragon'' depict him as quite dense.
* GeniusBruiser: The Animated series depicted as smarter then the other Mooks. In ''Neon'' its revealed Abobo has a degree in physics, and is writing his master's thesis.
* GiantMook: Abobo is significantly larger then the other {{Mooks}}, so much so he is the only enemy that cannot be grabbed in the original.
* GoodScarsEvilScars: In the arcade original, Abobo had a disfiguring scar going from his eye to his forehead.
* HulkSpeak: In ''Battletoads & Double Dragon'', he always refers to himself in third-person.
* MookFaceTurn: A cut mode for ''Advance'' involved Abobo doing one, and helping Marian escape.
* NightmareFace: The sprites for Abobo in the NES VideoGame/DoubleDragon games give him one of these. They're clearly based on the same character's arcade sprites, but the head is enlarged and the contrast in shading almost makes him look like he's made of rock. In addition, his handlebar mustache looks enough like a severely distorted mouth that some have mistakenly confused it for one.
* PaletteSwap: Even in the original, Abobo, outside of Jick, came in multiple skintones.
* PromotedToPlayable: Abobo is playable in the NES VS mode, the IOS/Zeebo ports of the original, the Neo Geo game, and ''VideoGame/AbobosBigAdventure.'' He was also going to be playable along with Marian in Double Dragon Advance, but the feature got cut.
* RealMenWearPink: Despite his intimidating appearance, Abobo's hobbies include singing, and dancing [[http://doubledragon.kontek.net/forums/viewtopic.php?f=2&t=13&p=38 according]] to the Japanese version of the Double Dragon Advance manual.
* ScaryBlackMan: Depending on the game and the palette being used.
* ThrowABarrelAtIt: He has the ability to throw oil drums and other large objects in the original arcade version.
* WalkingShirtlessScene: Outside of the rare occasions he wears a tanktop, Abobo's chest is always bared.
* WrestlerInAllOfUs: In the Neo-Geo fighting game, Abobo has wrestling moves. Even in the original, Abobo had some WWE style throws.

[[folder:Chin Taimei]]
* BlindingBangs: Some designs, such as on the nes, depict his eyes as covered by his hair.
* BruceLeeClone: Taimei is a variant as he's based off Creator/JackieChan.
* CanonImmigrant: At first he was just a character made up for the NES version of the first game, but later appears in the arcade version of ''II'' as a stick-wielding fighter. His name was used for the Player 2 version of Chin (shortened to "Taime" due to space limit) in the arcade version of ''3''.
* DualWielding: with the sticks in ''II''
* {{Expy}}: His design in the first NES game resembles the Karate Fighter from ''Mat Mania'', a Technos-developed wrestling game.
* SpellMyNameWithAnS: His name was shortened to "Chintai" in the English manual.
* YouDontLookLikeYou: Taimei in the arcade version of III is simply a PaletteSwap of the short and fat Seimei as opposed to the tall and thin design he usually has.

[[folder:Willy Mackey]]
The leader of the Black Warriors, a biker gang leader whose organization grew in power after the nuclear war. Serves as the final boss in the arcade versions of the first two games, where he shoots Marian to death in the second game. In the NES versions, he's merely a figurehead, being the last opponent fought by Billy before the final battle against Jimmy in the first game and a complete no-show in the second.
* AdaptedOut: Absent in the second NES game, despite being the reason why Billy and Jimmy are seeking revenge against the gang in the arcade version, although he does show up in the PC Engine version.
* BigBad: In the first two arcade games and most remakes of the original.
* BottomlessMagazines
* DemotedToDragon: In the first NES game, he's just the last guy the player fights before the final fight with Jimmy.
* SuddenNameChange: To "Roper" in ''Battletoads & Double Dragon''. The manual for the Master System version also switched his name with Jeff's.
* PistolWhipping
* VillainousWidowsPeak: In the first two arcade games.

* ButtMonkey: Williams is most definitely one of these in ''Neon'': Skullmageddon threathens to dock his pay for the monitors you break in levels 3 and 4 and 2 of his quotes when he kills you are "No dogfood for Williams today!" and "Guess who's sleeping inside tonight?"
* TheGoomba: Williams is the most common, and basic enemy.
* HomeRunHitter: His weapon of choice in the original game is a baseball bat.
* {{Mook}}
* PrecisionGuidedBoomerang: Gets one in ''Super Double Dragon''..
* ShoutOutThemeNaming: Named after Jim Kelly's character from ''Film/EnterTheDragon''.
* ThoseTwoGuys: Williams is almost always accompanied by Rowper
* ThrowABarrelAtIt: He gains this ability in the GBA version.
* UnholyMatrimony: In the IOS continuity, Williams and Linda are married.
* WouldHitAGirl: He's the one who punches Marian and carries her off in most versions.

* AdaptationNameChange: Is called Brett in the IOS game.
* TheGoomba
* HomeRunHitter: He can wield a baseball bat in the arcade version like Williams does, but he loses this ability in the NES version.
* {{Mook}}
* PrecisionGuidedBoomerang: Wields one in the NES version of ''Double Dragon II'' which cannot be taken away from him.
* RaceLift: Roper is usually portrayed as african american, or caucasian, but his incarnation in ''Double Dragon Super'' is Japanese.
* ShoutOutThemeNaming: Named after John Saxon's character from ''Film/EnterTheDragon''.
* SpellMyNameWithAnS: His name has also been spelled "Lopar" and "Roper" (the latter being his namesake from ''Enter The Dragon'').
* ThoseTwoGuys: He's almost seen with Williams.
* ThrowABarrelAtIt: His special ability in the first game.

* CombatSadomasochist: In ''Neon'', she tells Billy and Jimmy to get on their knees and lets out ecstatic shouts of "Oh good!" whenever she manages to kill either one of them or is defeated herself.
* EpicFlail: Lindas from ''II'' use these
* WhipItGood: Linda's weapon of choice in the original game.
* ShoutOutThemeNaming: Presumably named after Bruce Lee's wife, Linda Lee Cadwell.
* SpellMyNameWithAnS: Promotional materials for the first game spelled her name as "Rinda."
* UnholyMatrimony: In the IOS game Williams is her husband.

* AdaptedOut: Most of the console versions of the first game leaves him out and simply use Abobo in his place. Even ''Double Dragon Advance'' essentially replaces him with an actual mohawked Abobo.
* AllThereInTheManual: His official name was an obscure fact (due to his omission in console versions), but it was mentioned in print in a review by Famitsu.
* BadassBeard: Jick has an unruly beard as opposed to Abobo's mustache.
* CompositeCharacter: Many video games just replace him with Abobo who is given his moves. The Double Dragon Advance actually calls him.
* DegradedBoss: Two Abobos show up in the final level of the arcade original.
* HeadSwap: Of Abobo, allowing the game designers to save graphic space by having only having to draw his head.
* KingMook: He's tougher than Abobo, who is already tough enough as it is.
* LawOfChromaticSuperiority: The Green Jick who appears at the end of Mission 3
* NamedByAdaptation: The Green palette swap of Jick was originally just called Abobo like the other enemy, but was given the name more unique name of ''Mibobo'' in the Advance version.
* NoCelebritiesWereHarmed: His dark skin and hairstyle makes him a dead ringer for Creator/MrT.
* PaletteSwap: Has a green palette swap guarding the entrance of the hideout, who was originally named Abobo in the same review by Famitsu, but rennamed "MiBobo" in the Advance version.

* AdaptedOut: Also cut out from most versions of the first game, particularly the NES and Game Boy versions, as his role was served by Chin there.
* DemotedBoss: In the arcade version clones of Jeff appear during the final two stages as {{elite mook}}s and they are just as tough as the boss version from Mission 2.
* EliteMook: In ''Super Double Dragon'', where he is a mook who is tougher than the usual Williams and Rowper variety.
* HeadSwap: of the Lee Brothers, allowing greater moves.
* PaletteSwap: Of Billy Lee in ''Super Double Dragon''.

!Introduced in Double Dragon II
* BarrierBustingBlow: Burnov punches through walls.
* BreakoutMookCharacter: Next to Abobo, he's the most recognized bad guy in the series, so much so that he often appears in remakes of the first game, such as the GBA and iOS versions, despite not being introduced till ''II''.
* CampGay: In the GBA version, and to a greater extent in the [=iOS=] version, where he hits on Billy and Jimmy.
* CaptainErsatz: His original design resembles that of the ''Manga/{{Kinnikuman}}'' wrestler Neptuneman, which probably explains why they changed his mask in the [=iOS=] version.
* FatBastard
* SpellMyNameWithAnS: The manual for the Neo-Geo version spells Burnov as "Bulnov".
* StoutStrength: He is one of the most powerful enemies.
* WrestlerInAllOfUs: In the Neo-Geo fighting game.

* ShoutOut: Named and modeled after Bolo Yeung, who played Mr. Han's bodyguard in ''Film/EnterTheDragon'', continuing the ShoutOutThemeNaming of Williams, Rowper and Linda.
* SuspiciouslySimilarSubstitute: To Abobo in ''Double Dragon II''. In fact, he's literally Abobo with mop hair (same facial structure in both, the arcade and NES versions), to the point that the Mega Drive version's manual identifies him as such (rather than as "Bolo") on the enemy list.

* CaptainErsatz: Abore is a cross between The Franchise/{{Terminator}} and Wrestling/AndreTheGiant.
* CompositeCharacter: Abore in the second NES game has the same moves as his namesake from the arcade version, but his appearance resembles that of Oharra's, an Abobo head-swap from the arcade version.
* {{Expy}}: Abore in the arcade version of ''II'' seems to be based on André the Giant from the ''WWF Superstars'' arcade game also developed by Technos.
* GlowingEyesOfDoom: In the second Arcade game.
* MightyGlacier
* NoCelebritiesWereHarmed: Abore in the arcade version of ''II'' wears a pair of sunglasses with glowing red eyes underneath them that makes him look like a Franchise/{{Terminator}}-clone.
* SinisterShades: In the Arcade and PC-Engine version of ''II''

[[folder:The Mysterious Warrior]]
* CanonForeigner: He was made up for the NES version and never appeared in the original arcade game.
* EvilCounterpart: His Gen-Satsu-Ken style is said to be the anti-thesis of the Lee brothers' Sou-Setsu-Ken style.
* {{Expy}}: Willy's bodyguards, the Five Emperors of Gen-Setsu-Ken in the GBA version. The Shadow Master from the animated series also serves a similar role.
* MasterOfIllusion
* MyDeathIsOnlyTheBeginning
* NoNameGiven
** TomTheDarkLord: WordOfGod is that his name is ''Raymond.''

!Introduced in Double Dragon 3
* [[spoiler: BigBad: She leads the Neo Black Warriors.]]
* DeusExMachina - [[spoiler:Hiruko's death while trying to enter Cleopatra's tomb with only three Sacred Stones]] in the third NES game.
* [[spoiler: TreacherousAdvisor: As it turns out Hiruko was manipulating the Double Dragons all along so she could steal the treasure for herself, and rule the world.]]
* WalkingSpoiler

* DubNameChange: Named Aldo in the Japanese version.
* HisNameIs: Brett tries to tell the Lee brothers that [[spoiler:Hiruko]] is leader of the villains, but dies before he can do so.
* WeHardlyKnewYe: He just gets introduced in his death scene.

[[folder:Roney Urquidez]]
* AdaptationalVillainy: In the home versions, Roney is a boss in Italy rather then a playable character.
* AmazingTechnicolorPopulation: His PaletteSwap brother, Jonny has steel grey skin.
* TheBigGuy: Towers over every other playable character.
* ColorCodedMultiplayer: The Blonde Roney with blue pants has two PaletteSwap Brothers, Sunny(orange pants with green hair, also not to be confused with Sonny), and Johnny(brown hair, [[AmazingTechnicolorPopulation grey skin]], and yellow pants) to facilitate this.
* DemotedToExtra: Is an unplayable boss in the home versions of III.
* NoCelebritiesWereHarmed: Based off Benny "the Jet" Urquidez, an American Karate practitioner.

[[folder:Masao Oyama]]
* AdaptedOut: Removed in all home versions but the Genesis adaptation.
* ColorCodedMultiplayer: Masao has color coded twins, Kunio(Red), and Akira(Yellow).
* FragileSpeedster: The fastest playable character.
* NoCelebritiesWereHarmed: Named after Mas Oyama, legendary karateka who created his own style.

* AdaptedOut: Removed in all home versions, none of which three player co-op.
* ArtifactTitle: With Sonny, they're Triple Dragons instead of Double.
* TheBusCameBack: Sonny after not appearing since 1990, reappeared in Double Dragon IV in 2017.
* ColorCodedMultiplayer: Was introduced so three players could play as the Lee brothers.
* GameplayAndStorySegregation: While ingame Sonny is a simple clone of the Lee brothers, the American poster made him distinct from the Lee brothers, and said he was simply a practitioner of Sou-Setsu-Ken.
* KamehameHadoken: His special move in IV is to shoot a Fireball.
* OneMarioLimit: He exists alongside Sunny, a palette swap of Roney Urquidez with a barely different name thats pronounced the same.
* PaletteSwap: A yellow clad version of the Lee brothers with orange hair.

[[folder:Chin Seimei]]
* {{Acrofatic}}: Despite his weight, he can jump very high.
* AvengingTheVillain: He wants to avenge his brother Chin Taimei
* DefeatMeansFriendship: He becomes playable after his defeat, ultimately forgiving the Dragons for killing Taimei(who in fairness, helped kill Marian).
* EasilyForgiven: In the third NES game, Chin forgets about the Lee brothers killing his brother in the previous game after losing to them.
* HeelFaceTurn: He starts off as a boss but joins after his defeat.
* MightyGlacier: He can defeat most villains with his basic punch combo, but is the slowest character in the game.
* NoCelebritiesWereHarmed: He brings to mind Creator/SammoHung.
* StoutStrength: He's very fat, but very strong.
* WolverineClaws: Chin Seimei's weapon of choice.

[[folder:Yagyu Ranzou]]
* DefeatMeansFriendship: Becomes a playable after the Lee bros defeat him.
* FragileSpeedster: He's the fastest playable character, but deals the least damage.
* HeelFaceTurn
* {{Ninja}}

* AllBikersAreHellsAngels: The Neo Black Warriors are a biker gang.
* BaldOfEvil: He's the only character with a shaved head, and is the main grunt of a villainous biker gang.
* TheGoomba: Gibson is the most common and easy to defeat enemy.
* KnifeNut: Gibson is the only enemy to carry the Knife weapon.
* ThoseTwoBadGuys: He and Robinson often come in pairs.

* BarbarianLongHair: Robinson has long unkempt hair and is a barbaric biker.
* GrievousBottleyHarm: He almost always comes with a beer bottle.
* ThoseTwoBadGuys: Robinson tends to accompany Gibson.

* DelinquentHair: She has a mohawk according to the manual, but it looks more like a rattail within the game.
* KnifeNut: Throws limitless small daggers. Unlike Gibson's knife, this cannot be picked by the player characters.
* SuspiciouslySimilarSubstitute: Is the lone female of the Black Warriors and has a mohawk, just like Linda who doesn't appear within the third game.

* AvengingTheVillain: He is Willy's brother, and wants to avenge his defeat.

[[folder: Martial Artists]]
* UniqueEnemy: They only show up in mission III of the NES game.
* NoNameGiven: The name for this enemy type isn't given anywhere.
* SaiGuy: They use sais which work just like the bottle weapon. Sais can also can be taken for use by the player.

[[folder: Ninjas]]
* GratuitousNinja: While it makes sense to encounter Ninjas in Japan, its quite odd to see them in an ancient Egyptian temple.
* NoNameGiven: The name for this enemy type isn't given anywhere.

[[folder: Gladiators]]
* AnnoyingArrows: Their counterparts in the arcade game shoot arrows which mostly just knock the player down. Otherwise the gladiators are more likely to whack the player [[ImprobableUseOfAWeapon with their bow]].
* JavelinThrower: Will throw an endless supply of Javelins at the player in the NES version.
* NoNameGiven: The name for this enemy type isn't given anywhere.

[[folder:Li Chenglong]]
* AdaptedOut: In the NES version, Seimei is the boss of the China stage while Li is nowhere to be found.
* BruceLeeClone: Based on Bruce Lee from Enter the Dragon.

* AdaptedOut: Not in the NES version where Roney is the boss of Italy.
* AmazingTechnicolorAdaptation: He's found in Cleopatra's temple with a grey skintone, possibly to mark him as undead.
* BladeOnAStick: Giulano is a gladiator that uses a double sided glaive to beat his opponents, it gives him alot of range.
* NintendoHard: Giulano is significantly harder then most other bosses outside of maybe [[FinalBoss Cleopatra]].

!Introduced in Super Double Dragon
* AsskickingEqualsAuthority: He's one of the toughest bosses, and high ranking due to his skills
* DemotedToDragon: In the Neo-Geo game, he's Shuko's right hand man.
* NamesTheSame: As the codename of the GIJoe field commander.

!Introduced in the animated series
[[folder:Shadow Master]]
* BifurcatedWeapon: His scythe can split into a sword and a smaller scythe
* BigBad
* EvilSoundsDeep
* EvilUncle
* NiceJobFixingItVillain: If not because Shadow Master ordered to kill Jimmy, he wouldn't have turned to the side of good.
* SinisterScythe

* ScaryBlackMan
* TheStarscream

* AnIcePerson: His body looks like ice, though he doesn't seem to manipulate ice.
* EvilGenius
* NumberTwo: Shadow Master's most important lieutenant in the series.

* BlindAndTheBeast: Jawbreaker befriends the Samantha (Commissioner Briggs' blind daughter) after kidnapping her under the Shadow Master's orders in "The Sight of Freedom". When Icepick orders him to "[[NeverSayDie eliminate]]" the girl, Jawbreaker rebels against the Shadow Warriors and rescues her.
* HeelFaceTurn

* TheDragon: He is actually the third in command, but since Icepick mostly remains at the lab, it's Sickle who is left in charge for the field missions.
* KnifeNut: Subverted since, despite two huge blades being his WeaponOfChoice, he's afraid of knifes.
* MasterOfDisguise

* ArmCannon
* {{BFG}}
* SuspiciouslySimilarSubstitute: To Willy, who was written-off in the second episode.
* TriggerHappy: It's his name after all.

!Introduced in Double Dragon V
* EyepatchOfPower
* NamesTheSame: With Blade from the ''VideoGame/StreetFighterTheMovie'' arcade game. Coincidentally, they're both dressed like the {{mook}}s from their respective source materials.

* DemBones
* NamesTheSame: With [[ComicBook/InfinityInc Mr. Bones]] or [[{{Series/Bones}} Temperance "Bones" Brennan]]. Of course, it's very easy to get this trope with a single-word name.

* TheDragon: In the ''V'' game.
* {{Expy}}: To Linda
* PunnyName: "Dominique" sounds kind of similar to "dominatrix", and she looks like one.
* WhipItGood

* DarkActionGirl
* DistaffCounterpart: To Blade in terms of character designs, since they both wear the generic Shadow Warrior uniform.

!Introduced in the movie

[[folder:Koga Shuko]]
* BigBad
* CanonImmigrant: He made his way into the Neo Geo fighting game, retaining his BigBad position.

!Introduced in the Neo-Geo game

* AsianRuneChant: His super move, the ''Onmyo Bakuen Satsu'' (Yin-Yang Burning Kill).
* {{Expy}}: He looks very similar to Yagyu Ranzou from the third arcade/NES game.
* {{Ninja}}

* DrunkenMaster

[[folder:Patrick Dulton]]
* EagleLand
* ShoutOutThemeNaming: His names, hairstyle and dress sense probably reference Dalton, [[Creator/PatrickSwayze Patrick Swayze's]] character in [[Film/RoadHouse Road House]].
* SpellMyNameWithAnS: The manual for the Neo-Geo version spells Dulton as "Dalton."

[[folder:Eddie Jenkins]]
* ScaryBlackMan

[[folder:Rebecca Brielle]]
* ActionGirl

!Introduced in Neon

The BigBad of ''Neon'', the [[NamesToRunAwayFromReallyFast intimidatingly-named]] Skullmageddon is a powerful [[{{Lich}} Super-Lich]] who leads the Shadow Warriors gang and kidnapped Marian because he wanted a date.

* [[spoiler:BattleCouple: With Marian during the first part of the final boss battle.]]
* BigBad: Marian's kidnapper, and leader of the Black Shadow Clan.
* BadBoss: It's PlayedForLaughs here.
* BadassOnPaper: There is quite a contrast between his appearance and immense power and his actual demeanor. He '''looks''' the part of a BigBad and a final boss alright. The first time you meet him, he is sitting on a throne, looking all intimidating... ''[[CrowningMomentOfFunny and then he speaks]]...''
* DemBones: A skeletal lich.
* EvilSorceror: Comes with the territory of being a lich.
* {{Expy}}: Arguably one of [[WesternAnimation/HeManAndTheMastersOfTheUniverse1983 Skeletor]]. It's mostly just his voice and skeleton theme.
* EyeScream: In the Continue screen, he stands in front of a chained Billy, preparing to poke his eyes out with his fingers.
* ImYourWorstNightmare: His BossSubtitles actually read "Your Worst Nightmare".
* LargeHam: Being a Skeletor expy, he is naturally both this and...
* LaughablyEvil
* LeaningOnTheFourthWall: Some of his comments. Especially in his villain song, the things he says when you pause the game when fighting him and his comments on how the battle is taking too long.
* {{Lich}}: And not just any simple lich, but a '''super'''-lich!
* MagicKnight: He can wield a sword with the best of them, and is also proficient at magic.
* NamesToRunAwayFromReallyFast
* NiceHat: And it doubles as a sharp projectile!
* NinjaPirateZombieRobot: Lich gang leader samurai [[spoiler:and an actual robot as Giga-Skullmageddon.]]
* [[spoiler: OneWingedAngel: His Giga Skullmageddon form.]]
* PungeonMaster: He makes enough bone-related puns to give [[VideoGame/{{Undertale}} Sans the skeleton]] a run for his money.
-->''Time to make a '''marrow''' escape! '''Bone''' voyage!''
* SkeletonsInTheCoatCloset: His preferred choice of wardrobe incorporates skulls and bones, loads of them.
* SlouchOfVillainy: During his intro.
* VillainSong: He sings [[https://www.youtube.com/watch?v=70xKxKr0N3Q the ending credits]].
* WeWillMeetAgain: At the end of his VillainSong.
-->''I'll return one day to antagonize you, Billy and Jimmy!''

!Introduced in Double Dragon IV
[[folder:Casey and Shannon]]

* BigBadDuumvirate: Of ''IV''.
* FinalBoss: They're the final opponents of the game. [[DualBoss Both of them are fought at the same time]].
* HeelFaceTurn: [[spoiler: Unlike other villains in the series, Billy and Jimmy actually spare their lives upon defeating them and they actually turn good.]]

A kunoichi hired by the renegades to defeat the Lee brothers.

* BareYourMidriff.
* DiscOneNuke: she can throw shurikens. And in the hands of a player, she can deal with the strongest characters from a safe distance. However, the shurikens are limited (unless you lose a life) and her stamina is below average, see FragileSpeedster below.
* FragileSpeedster: she's the fastest character in the game, but she can't take too many hits (moreso if her opponent is Abobo or Burnov).
* MsFanservice: have you noted how [[https://www.arcsystemworks.jp/dd4/ well-endowed]] is her spirte? Even for 8-bits?
* SmokeOut.