For characters that debuted in ''Film/TronLegacy'' and tropes that apply to characters here that also appeared in the sequel, please see [[Characters/TronLegacy that movie's page]]. See also the [[Characters/TronUprising character page]] for ''TronUprising''.

!Humans

!! Kevin Flynn (JeffBridges)
[[quoteright:267:http://static.tvtropes.org/pmwiki/pub/images/clu1_8892.jpg]]
[[caption-width-right:223:"Greetings, programs!"]]
A former programmer at ENCOM whose ideas for video games were stolen by Dillinger. Dillinger subsequently fired him from the company to silence him. When we meet him, Flynn has spent at least a year seeking evidence of Dillinger's theft, with no success. Alan and Lora enlist him to help them put an end to Dillinger's abuse of power, but the MCP responds to their efforts in a way none of them could have predicted.

* ActionSurvivor: When he first enters the games.
* ActingForTwo: For Flynn and Clu.
* AudienceSurrogate
* DeadpanSnarker: A major snarker:
-->'''Flynn:''' I never should have written all those tank programs.\\\
'''Flynn:''' Now ''that'' is a ''big door''!
* [[spoiler:DidNotGetTheGirl: Broke up with Lora before the film, and briefly kisses Yori]].
* GodInHumanForm: As a User to the programs.
* [[spoiler:HeroicSacrifice: Thinks jumping into the laser will cause this, but it simply rematerializes him back into reality]].
* HollywoodHacking: Though his methods aren't too unrealistic compared to other examples. Sitting at Lora's terminal, he was getting ready to put the MCP into a logic loop so he could search for his file uninhibited. Had he not been sitting in front of the digitizing laser, he might have succeeded.
* JerkWithAHeartOfGold
* [[spoiler: LastKiss: With Yori]].
* ManChild: He seems to have regressed to this state after getting kicked out of his company. When we first see him, he's the owner of an arcade and wowing his teenage customers with his virtuoso game skills. His office overlooks the arcade, Lora (his ex) shouts in frustration "Now, you see why all his friends are fourteen years old!"
* MasterOfUnlocking: Has a talent with electronic locks among his various skills and uses it to open the huge main door at ENCOM.
* MessianicArchetype: From the programs' perspective he is a literal divine being who descends from on high, joins the fight against evil, and [[spoiler:returns to his own world by sacrificing himself to save program-kind]].
* NerdsAreSexy
* PlayfulHacker
* SarcasmMode: He's usually never ''off'' this mode.
* TheresNoPlaceLikeHome: although his goals do eventually shift from "get home" to "free the system".
* TrappedInAnotherWorld: Ends up physically [[TeleportersAndTransporters digitized]] into {{Cyberspace}} by the DeusEstMachina Master Control Program.

!! Alan Bradley (Bruce Boxleitner)
One of the programmers at ENCOM, with big nerdy glasses and a hot-air popcorn machine, he created TRON.

* GlassesPull: When he's complaining to Lora about Dillinger and the MCP.
* NerdGlasses: His large and unflattering spectacles.
* NerdsAreSexy
* NiceGuy
* OnlySaneMan: Appears to consider himself as such compared to Flynn and Lora.
* SourSupporter: He isn't thrilled with the idea of helping his fiancee's ex-boyfriend, at least at first.
* ToBeLawfulOrGood: He's very much on the fence about ''warning'' Flynn, much less helping. The "lawful" option would be to look the other way, let Flynn get caught, and give up on his software. The "good" option involves about a half-dozen felonies for all the right reasons. He takes the "good" option.

!! Ed Dillinger (Creator/DavidWarner)
The CorruptCorporateExecutive responsible for the Master Control Progam, and Flynn's termination from ENCOM. He is now Senior Executive Vice President thanks to his "contribution" to the company line.

* CorruptCorporateExecutive
* DirtyCoward
* EvenEvilHasStandards: Dillinger balks when MCP expresses desire to hack into the Pentagon and Kremlin.
* IdiotBall: He ran with this one, but willingly letting the MCP hack the Pentagon and Kremlin just so it wouldn't tell the world about all the programs he'd stolen will forever be one of the classics.
* {{Jerkass}}
* MyGodWhatHaveIDone: [[spoiler:Reacts this way when he learns the full extent of the MCP's plans.]]

!! Lora Baines (Cindy Morgan)
One of the programmers at ENCOM, specializing in laser research and digitizing objects. Also the current love interest of Alan Bradley, and the former love interest of Kevin Flynn.

* DefrostingIceQueen: Towards Flynn by the end of the first movie.
* HotScientist
* IceQueen: Flynn halfheartedly accused her of acting like this before they broke up; he may or may not [[DeadpanSnarker have been serious]].
* SweaterGirl: Wears a white angora sweater at the end of the movie.
* [[TheMissusAndTheEx The Mister and the Ex]]: Alan as the Mister, Flynn as the ex.

!!Walter Gibbs (Barnard Hughes)
An ENCOM scientist. Gibbs founded ENCOM, originally running it out of his garage, before Dillinger took over, and doesn't approve of Dillinger's methods.

* CoolOldGuy: He was the guy who founded Encom, but was more interested in [[ForScience scientific development]] than money. He ''invented'' the laser that got it all started. He was also the only person on-screen who dared to tear [[CorruptCorporateExecutive Dillinger]] a new one to his face over the way things were run.
* ForScience : He was so happy to be working in a lab with his laser project that he all but handed Dillinger the company he built.
* KickedUpstairs: By Dillinger.
* NerdGlasses

!Programs

!! TRON (Bruce Boxleitner)
[[quoteright:239:http://static.tvtropes.org/pmwiki/pub/images/tron_bruce_Boxleitner4_9054.jpg]]
[[caption-width-right:239:"That's Tron. He fights for the Users."]]
A security program, written by Alan, that threatens the Master Control Program's plans to infiltrate and take over government computers. Held prisoner by Sark as a Game Grid gladiator when Flynn first sees him.

* ActionHero
* {{Badass}}
* BigGood
* BruiserWithASoftCenter: Yes, he's the biggest {{Badass}} in {{cyberspace}}. He's also a very loyal and sweet guy. He's visibly shaken when it looks like Flynn and Ram were killed. When he's running through the city, an urgent call from his User pending, he goes to rescue his girlfriend first (and if you believe that DeletedScene, go back to her place for a while). His KingdomHearts incarnation is even more so.
* EstablishingCharacterMoment: TRON's Badass cred is established in his very first appearance, where he is seeing taking on four other Programs in a blatantly-unfair disc duel...''and wins.'' Then he raises his disc to the sky, as if dedicating his victory to the Users.
* FriendlySniper: Is an expert at throwing his disc.
* MeaningfulName: TRON means "trace on," similar to his functions in the game. Also abbreviated from "electronic."
* NameTron: According to Lisberger, TRON is a shortening of the word elec'''TRON'''ic. He didn't learn until years later that there was a BASIC command that was also TRON (a debugging tool, short for "trace on"). [[note]]The computer graphics were calculated on a small mainframe, Digital Equipment Corporation model PDP-10. That 36-bit computer has a TRON instruction (Test Right half, set to Ones, skip if any were Nonzero). Trivia: the numeric value for that opcode, in octal, is 666.[[/note]]
* ReligiousBruiser
* SupportingProtagonist
* ThreeLawsCompliant: Will not injure a User, or by inaction allow Users to come to harm? Check. [[spoiler: This is a big plot point in the sequel]] Obeys orders given by Users unless it comes into conflict with the first law? Check. Will fight to preserve his own life ''unless'' it comes into conflict with the first two directives? [[spoiler: Check, and tragically so]].
* TronLines (Imagine that): Blue, with a large T on his chest made of light squares.

!! Master Control Program (voice of Creator/DavidWarner)
[[quoteright:185:http://static.tvtropes.org/pmwiki/pub/images/185px-Master_control_program-1-_8870.jpg]]
[[caption-width-right:185:"End of line."]]
The BigBad. An artificially intelligent program used by Dillinger to advance his career at ENCOM by assimilating the functions of all the other programs on their mainframe. It eventually begins planning to take over other systems, like the U.S. Military's computers, and even overcomes Dillinger's control. Inside the computer world, the MCP is a totalitarian dictator attempting to stamp out even the belief in users.

* AIIsACrapshoot: Figures he can run things 800 to 1200 times better than any human
* BigBad
* EvilSoundsDeep
* FlatEarthAtheist: Is not one himself, but promotes the attitude among the programs.
* HugeHolographicHead: And the UncannyValley is Grand Canyon deep, emphasizing what undiluted NightmareFuel he is to the programs.
* InstantAIJustAddWater: Started as a chess program, then various people gradually rewrote it to perform sysadmin duties on its own hardware. After this, it continued to gain intelligence by assimilating other programs' code into itself.
* LudicrousPrecision
-->'''MCP:''' There's a 68.71 percent chance you're right.\\
'''Dillinger:''' Cute.
* NayTheist: Although his public position on the matter is less NayTheist and more "[[FlatEarthAtheist Users don't exist]], period".
* SerkisFolk: Quite possibly the (primitive) UrExample.
* SinisterGeometry
* TurnedAgainstTheirMasters: Intends to hack into the Pentagon and take control of the US's missile defense system, using it to force the world to obey.
* VerbalTic: "End of line."
* WeUsedToBeFriends: Unless what he says was a lie this piece of dialogue implies it.
--> '''MCP:''' You shouldn't have come back Flynn.
--> '''Flynn:''' Hey hey hey, it's the big master control program everyone's been talking about.
--> '''MCP:''' Sit right there, make yourself comfortable. Remember the time we used to spend playing Chess together?
* WrongGenreSavvy: He isn't overly arrogant toward the threat Flynn poses to him, but he still insist in making him fight to Death in the gaming grid... until he escapes With Tron and Ram.
* YouWillBeAssimilated: Kills programs and takes on their functions.

!! Commander Sark (Creator/DavidWarner)
TheDragon to the MCP, with Dilinger's face and voice. Runs the gladiatorial games.

* [[spoiler:AttackOfTheFiftyFootWhatever: Sark becomes a giant after the MCP transfers all its functions to him]].
* TheDragon
* FantasticRacism
* NayTheist: But pretends to be a FlatEarthAtheist for agitprop purposes.
* [[RedEyesTakeWarning Orange Lines, Take Warning:]] Unique to him, Sark's TronLines glow a brilliant orange when he is angered or sent into a blind rage.
* RobotsEnslavingRobots
* WeCanRuleTogether: Offers Tron a place by his side.

!! CLU (JeffBridges)
One of the programs Flynn used to hack into the ENCOM system.

* DefiantToTheEnd
* HollywoodHacking: An actual hacking program, albeit a custom one.
* MachineMonotone: Unlike almost all of the other programs. Graned, he was the only one from a different system.
* NotAsYouKnowThem: Following the events of the movie, CLU was rebuilt and vastly upgraded into a powerful Admin program who later became the BigBad of the [[Film/TronLegacy sequel]]. Some fans consider them the same character because they have the same name and actor, but they have very distinct functions and characterization.
* SacrificialLamb / SacrificialLion: To prove that the MCP is a jerk
* ScreamsLikeALittleGirl

!! Yori (Cindy Morgan)
A program written by Lora. She appears to be a 3D simulation program and may play a role in the digitization process.

* AcePilot
* TheEngineer: She designed the Solar Sailer that gets them out of the city and most of the way to the fight with Master Control.
* LastKiss: With Flynn as Flynn jumps into the beam.
* LingerieScene: Cut from the final release, but seen on DVD.


!! Ram (Dan Shor)
An actuarial program for an insurance firm conscripted into the gladiatorial games. An ally to Tron and eventually Flynn.

* ActionSurvivor
* BadassBookworm / BadassNormal / BadassUnintentional: Ram seems pretty damn good at the gladiator games he was forced into despite being an actuarial program with no security features.
* GoOutWithASmile: After realizing Flynn is a User.
* MrExposition: He gives Crom, and by extension the audience, the low-down on the MCP's regime and the game grid.
* NiceGuy: Imagine a friendly neighbohood insurance agent who genuinely loves his job helping people. He might be the most uncorruptable guy in the whole franchise.
* SacrificialLion: [[TooCooltoLive Just to piss us off.]]

!!Dumont (Barnard Hughes)
A Tower Guardian who is nearly killed by the MCP for trying to help the heroes communicate with the real world.

* CoolOldGuy: He was the one who allowed Tron to get in contact with Alan via his tower and download the upgrade that eventually destroyed Master Control. [[TheDragon Sark's]] forces eventually catch him, and he's remarkably snarky and sarcastic to them, even in the face of certain de-rez.
* DefiantToTheEnd
* ObiWanMoment: Sark's troops storm the gates of his tower, intending to arrest him and drag him to certain de-rez. He calmly (but sarcastically) addresses Sark as just another Program seeking communion with a User.
* TurbulentPriest: Guardians serve a priest-like role in the system, and he maintains the last free tower. He's cranky and embittered for a good reason, but he's just fine with being a pain in the ass.

!!Crom (Peter Jurasik)
A banking program conscripted into the games.

* JewishAndNerdy: He has a pronounced New York Jewish accent and is essentially a pencil pusher.
* SacrificialLamb: To prove that the Game Grid is truly dangerous

!!Bit
A binary digit resembling a compound of dodecahedron and icosahedron, Bit can only say "yes" or "no" when asked a question, and is used by other programs for advice.

* BigNo: Says "No no no no no" when scared.
* BigYes: Says "Yes yes yes yes yes" when amused.
* DeadpanSnarker: Despite only being able to say "yes" and "no."
* RobotBuddy
* VerbalTic: Only says "yes" and "no."
* ZeroesAndOnes: Acted as a sidekick to the hero and could only say "yes" or "no" (with a corresponding shape-change).
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