!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 the NES 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
* LightningBruiser: 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 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 ''Double Dragon II''.]]
* 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
* 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.]]]]
* ShesGotLegs: In both the original series and the Neo-Geo fighting game.
* [[spoiler:SparedByTheAdaptation]]
* 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!
* 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.

* AmazingTechnicolorPopulation: Several variants of him have fantastic skintone. Most notably the original game, and its remakes include a green Abobo, later called Mibobo.
* 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
* BarrierBustingBlow: Abobo punches through walls.
* 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
* GiantMook
* HulkSpeak: In ''Battletoads & Double Dragon'', he always refers to himself in third-person.
* 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
* WrestlerInAllOfUs: In the Neo-Geo fighting game.

[[folder:Chin Taimei]]
* BlindingBangs
* BruceLeeClone: His original design.
* 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.

[[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
* 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: With Rowper
* ThrowABarrelAtIt: He gains this ability in the GBA version.
* WouldHitAGirl: He's the one who punches Marian and carries her off in most versions.

* 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.
* 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: 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."

* 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.
* 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
* NoCelebritiesWereHarmed: His dark skin and hairstyle makes him a dead ringer for Creator/MrT.

* 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.
* 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 ''{{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

!Introduced in Double Dragon 3
* [[spoiler: BigBad]]
* DeusExMachina - [[spoiler:Hiruko's death while trying to enter Cleopatra's tomb with only three Sacred Stones]] in the third NES game.
* [[spoiler: TreacherousAdvisor]]
* 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

* BaldOfEvil



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

[[folder:Chin Seimei]]
* {{Acrofatic}}
* AvengingTheVillain: He wants to avenge his brother Chin Taimei
* DefeatMeansFriendship
* EasilyForgiven: In the third NES game, Chin forgets about the Lee brothers killing his brother in the previous game after losing to them.
* HeelFaceTurn
* MightyGlacier
* 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}}

[[folder:Li Chenglong]]
* BruceLeeClone: Based on Bruce Lee from Enter the Dragon.

!Introduced in Super Double Dragon
* AsskickingEqualsAuthority
* DemotedToDragon: In the Neo-Geo game.
* 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

* EagleLand
* SpellMyNameWithAnS: The manual for the Neo-Geo version spells Dulton as "Dalton."

* ScaryBlackMan

* 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]].