!!Jason Nesmith/Commander Peter Quincy Taggart
->Played By: Creator/TimAllen
->Voiced By: Creator/SalvadorDelgado (Latin American Spanish dub), Creator/HirotakaSuzuoki (Japanese dub)

An actor who once starred as the captain in a sci-fi show named ''Film/GalaxyQuest''. He's arrogant, seemingly a jerk to his costars, and is stuck in the past, clinging to the old glory days of the show, enabled by the devoted fans who love his showboating antics. At the beginning of the movie, at yet another convention, Nesmith is confronted with how pathetic he has become and drinks himself into a stupor. It's in this state that he encounters the aliens and unwittingly agrees to his first real mission.
* EightiesHair: Back on the show.
* BoldExplorer: He's the bold [[Series/StarTrekTheOriginalSeries Captain Kirk]] {{Expy}} from the eponymous ShowWithinAShow.
* BreakTheHaughty: At the start of the film, he realizes how pathetic he's become.
* TheCaptain: His position in the show, which means he gets giddy when he gets to be an ''actual'' captain.
* CatchPhrase: "Never give up! ''Never'' surrender!"
* TheCharmer: With his fans, yes. With his fellow actors... not so much.
* {{Expy}}: Of Captain James T. Kirk from ''Series/StarTrekTheOriginalSeries''. It's mentioned that Jason is from Iowa, same as Kirk was.
* GuileHero: He's got a good head for tactics and bluff and has an actor's talent for reading people.
* HeroicBSOD:
** Suffers an in-universe CreatorBreakdown at the beginning of the film after hearing gossip about the negative impact of the show has done to him and his cast-mates.
** He also has a more guilt-ridden one after [[spoiler:he tells Mathesar the truth about the show not being real.]]
* HiddenDepths: He is a bit arrogant at first, but he eventually shows a nicer side.
* TheKirk: His role in the show.
* JumpedAtTheCall: Once the interstellar shakes wear off, he's thrilled that a bunch of real, actual aliens built a replica of the ship and consider the cast to be actual heroes.
* LargeHam: Tim Allen has to parody one of [[Creator/WilliamShatner the biggest hams in television history]]. He does so with gusto, much to the annoyance of his fellow actors.
-->'''Jason:''' [[IncomingHam Your commander is on deck!!]]
* TheLeader: His position on the show, and he eventually takes the position for ''real''.
* MyGodWhatHaveIDone: [[spoiler: After he tells Mathesar the truth about the show not being real.]]
* NoCelebritiesWereHarmed: To William Shatner. He's the show's main cast member who has an inflated ego and is shocked to discover how the rest of the cast dislikes him for it.
* StepfordSmiler: Behind the egotistically jovial facade lies a sad ManChild escapist who desperately seeks to find the worthwhileness of his famed television role and found it thanks to the Thermians.
* TookALevelInBadass: He only played a badass on TV; by the end of the film, he proves himself a true fighter.
* TookALevelInKindness: Contrast his appearances at the beginning and at the end of the film; at the beginning he was a NiceCharacterMeanActor who was unashamedly hogging the spotlight and gets disappointed when he doesn't get the fanfare he wants. At the end, he realizes that the crowd at the convention aren't paying his costars any attention, and gestures for them all to come up and share the spotlight as they deserve it.
* UnfazedEveryman: At first, when first found himself on an actual spaceship and faces Sarris for the first time, he at first thinks it's all part of the fandom show despite the interior decor being likely impossible to be constructed by a group of fans, but when he's transferred back to earth via teleporter, he is... [[HeroicBSOD considerably]] fazed.
* UnnecessaryCombatRoll: He does this on the away mission before any actual danger occurs, out of habit from doing it on the show. It doesn't actually help him at first, and even causes him to lose his weapon. [[spoiler:It helps him kill Sarris in the end.]]
-->'''Gwen:''' [[SarcasmMode Does the rolling help]]?\\
'''Jason:''' Uh huh. It helps.\\
'''Gwen:''' ''[smirking]'' Where's your gun?\\
'''Jason:''' ...Shit!\\
'''Alexander:''' [[SarcasmMode "It helps."]]

!!Gwen [=DeMarco=]/Lt. Tawny Madison
->Played By: Creator/SigourneyWeaver
->Voiced By: Yolanda Vidal (Latin American Spanish dub), Creator/MamiKoyama (Japanese dub)

Another star of the show ''Film/GalaxyQuest'' now trapped on the convention circuit. Gwen played the show's fanservice character and is resigned to the idea that she never gets taken seriously. On the show, she had superfluous job of repeating the computer's statements and repeating the orders of the captain to the computer, so when the aliens build a real version of the ship, she gets stuck with that job again. There's some indication that Gwen and Jason were once genuinely attracted to each other but it died quickly once Gwen figured out what kind of guy Jason really was.
* ActionGirl: Though not in the old show, much to her chagrin.
* BridgeBunny: Her original role was to stand on the bridge, [[MaleGaze lean toward the camera,]] and "repeat everything the computer says". An enforced trope, because the computer ''only'' responds to her questions!
* BuxomIsBetter: In-universe, this was one of Gwen's character's key attributes.
* CaptainErsatz: A disgruntled version of Uhura.
* CaptainObvious: Her only job on the ship was to repeat what the computer says. {{Lampshaded}}.
-->'''Tommy:''' You know, that is getting ''really'' annoying!\\
'''Gwen:''' I have '''one''' job on this lousy ship--it's '''stupid''', but I'm going to do it, OK?!
* CommunicationsOfficer: She does this during the movie out of principle--it's her one job, and she will do it even though it's stupid.
* DumbBlonde: Gwen's character in the show itself. (Sigourney Weaver stated that her IQ [[BecomingTheMask dropped significantly]] every time she put on the wig...)
* TheFace: Parodied. The fact that Gwen has no technical specialty is pointed out: Her 'social skills' amount to "repeating everything the computer says."
* FauxActionGirl: Gwen's character, in-universe. She is shown kicking ass in the ''Galaxy Quest'' intro, but her role on the show is to recite what the computer says.
* HeartIsAnAwesomePower: While not discussed in the movie, one advantage to having the computer respond to only one officer is that it serves as a security precaution (in case, say, an invading force takes over the ship, as eventually happens with Sarris) and in some respects she is actually the most indispensable member of the crew, though admittedly it's probably rather dumb to have ''only'' one officer have this responsibility.
* TheLancer: Alexander is the lancer on the show, but in ''real life'' Gwen fills the role.
* ImpossiblyLowNeckline: She '''''HATES''''' it!
* LimitedAdvancementOpportunities: She just repeats what the computer says, and she '''''HATES''''' that too!
* MostCommonSuperpower: The essay on her character is "About ''my boobs'', and how they fit into ''my suit!''".
* MsFanservice: She's well aware of it, which she felt is an annoyance and sexual objectification-related humiliation against her.
-->'''Gwen''': "My Magazine/TVGuide interview was [[BuxomIsBetter six paragraphs about my boobs]] and [[FormFittingWardrobe how they fit into my suit]]!"
** Worth mentioning: when ''Magazine/TVGuide'' interviewed Jeri Ryan about playing Seven of Nine, a good chunk of the article was about her costume and how exactly she filled it out. Clearly, the writers [[ShownTheirWork did the research]]...
* NoCelebritiesWereHarmed: To Nichelle Nichols in her role as a bridge officer, and Jeri Ryan in being a skilled actress trapped as a shameless MsFanservice character (and unlike Ryan, never being able to break out of that role).
* SarcasticDevotee: To Nesmith.
* ShowSomeLeg: In a deleted scene, she invites two aliens to have sex, even showing them her boobs before instructing the computer to liquify them with a blast door.
* StatuesqueStunner: As portrayed by Sigourney Weaver, she is over six feet tall. The real Gwen [=DeMarco=] likes to describe herself as "six-foot-four in my stocking feet".
* {{Stripperiffic}}: Her uniform, more so after ClothingDamage.

!!Sir Alexander Dane/Dr. Lazarus of Tev'Meck
->Played By: Creator/AlanRickman
->Voiced By: Armando Réndiz (Latin American Spanish dub), Creator/UnshoIshizuka (Japanese dub)

Lazarus is a "Mak'tar", a member of an alien species renowned for their intellect. He is deeply intelligent and has psionic abilities. Additionally, he has a non-standard weapon and a pretentious catchphrase: "By Grabthar's hammer, by the sons of Warvan, you shall be avenged!". A trained Shakespearean British actor, Alexander resents both his catchphrase and being typecast.
* AlwaysSecondBest: To Jason.
* AuthorAvatar: Alexander's Shakespearean background and resentment of being typecast following his BreakoutRole is likely a {{Flanderization}} of his actor's real-life Shakespearean background and his resentment of being typecast as a villain following his BreakoutRole in ''Film/DieHard''.
* CaptainErsatz: Not just of Spock, but of the late Leonard Nimoy, who despised being pigeonholed as well.
* {{Catchphrase}}:
** "By Grabthar's hammer, by the sons of Warvan, you shall be avenged!" Ironically enough he hates it.
** Also serves as an IronicEcho, a TearJerker and a PreAsskickingOneLiner [[spoiler:(when he speaks the line to comfort a dying Quellek, who considered him a father figure)]].
---> '''Alexander:''' ''[gentle, but with gravitas]'' By Grabthar's hammer... by the sons of Warvan, you ''shall'' be... ''' ''avenged'' '''.
* ClassicallyTrainedExtra: ''Bitter'' about it, too.
* DeadpanSnarker: His every scene is dry, snarky and bitter. It helps that he is played by Alan Rickman.
* HatesTheJobLovesTheLimelight: Alexander Dane, played to perfection by Creator/AlanRickman. You can ''feel'' the self-loathing as he has to say [[CatchPhrase "that stupid line"]]. However, he's ready to bask in adulation for saving the Thermians -- until they all yell joyously that "Commander Taggart has saved us!"
-->'''Dane:''' [''sighing''] It's just not fair.
* HeroicBSOD: He goes through a minor one when [[spoiler:Quellek]] is killed.
* HiddenHeartOfGold: When [[spoiler:Quellek is shot]], Alexander delivers his catchphrase with complete sincerity, after having earlier stopped him from reciting it.
** Even earlier, after [[spoiler:Jason tells Mathesar the truth about the show not being real]], he experienced a HeroicBSOD by being guilt-ridden for [[spoiler:Jason's explanation]] along with the rest of of his cast-mates.
* INeedAFreakingDrink: When asked where he's going after the traumatic first contact with Sarris, he shouts back "to see if there's a pub."
* ItsPersonal: Once [[spoiler:Quellek]] is killed, Alexander charges at Sarris' mooks and assaults them.
* JerkassFacade: He comes across as rather annoyed and cynical by everything, but at the end of the day he's a good guy.
* TheMeanBrit: Of the JerkWithAHeartOfGold variety.
* NiceCharacterMeanActor: He starts out like this, not hiding his initial dislike of being remembered for just that role at conventions.
* NoCelebritiesWereHarmed: Part Creator/LeonardNimoy (bitter about being [[IAmNotSpock typecast as Lazarus]] - Nimoy got over it, though), part Creator/PatrickStewart and part Alec Guinness - a respected Shakespearean actor who ended up on a cult science fiction show, and is none too happy about it (Stewart doesn't regret his time on ''Franchise/StarTrek'' and in fact, is proud of his role, but Guinness was upset that many people only remembered him from ''Franchise/StarWars'').
* NotSoAboveItAll: World-weary, snarky, and British... but he still holds his scanner upside-down on the planet. He only realizes after boldly starting them in the wrong direction.
-->'''Tommy:''' You know with all that makeup I almost thought you were smart for a second!\\
'''Alexander:''' Shut ''up''!
* PhraseCatcher: Fans constantly repeat his character's catch phrase at him and he ''despises it''.
* RoaringRampageOfRevenge: After [[spoiler:Quellek is shot]], he opens up a ''huge'' can of whupass on Sarris' {{Mooks}}.
* RubberForeheadAlien: Doctor Lazarus is a ''literal'' rubber forehead alien. In fact, Alexander is ''never'' seen without the prosthetic during the entire film, including at home. It becomes visibly damaged near the end so his real hair starts poking through.
* ScreamingWarrior: He charges at Sarris' men screaming when [[spoiler:Quellek]] is killed.
%%* TheSpock:
* SurroundedByIdiots: He never actually says this, but it's all over his face and in his voice that he thinks of the cast.
* TookALevelInBadass: In the final act, he charges an alien head-on while unarmed and ''wins''.
* TookTheBadFilmSeriously: An InUniverse example. Alexander admonishes Jason for never being serious as an actor. This indicates that Alexander, despite being a [[ClassicallyTrainedExtra Shakespearean actor]], brought his A-game to even a schlocky syndicated sci-fi show.
* WhatHaveIBecome: PlayedForLaughs.
-->'''Alexander:''' How did I come to this? I played Richard III. There were five curtain calls. I was an actor once, dammit; now look at me, LOOK AT ME! I won't go out there, and I won't say that ''stupid'' line one more time. I can't! I won't!


!!Tommy Webber/Lt. Laredo
->Played By: Daryl Mitchell
->Voiced By: Creator/BenjaminRivera (Latin American Spanish dub), Koji Ochiai (Japanese dub)

Tommy parodies an actor in the "boy wonder" role, who has aged considerably since he was on the show. His role as Laredo is essentially that of the pilot, but when he flies the real ''Protector'' out, it takes him most of the film (and carefully studying his old ''Galaxy Quest'' episodes) to remember how to do it right.
* AcePilot: In the show; not so much in real life. [[spoiler:After he reviews his technique he's good enough that he can attract the mines to drag without actually getting hit.]]
* CaptainErsatz: Of Wesley Crusher from ''Series/StarTrekTheNextGeneration''. Creator/WilWheaton (the actor who played Wesley) commented that the one aspect of ''Trek'' fandom the film lacked was a fan complaining about the presence of a kid on the bridge. (In fact, Wheaton would have liked to [[TheCameo play the role himself]].)
* DoingItForTheArt: This occurs in-universe as, due to the fact that he was a kid at the time, he naturally took his role on the show quite seriously, to the point of coming up with his own consistent method of how the ship's controls worked. This comes in handy when the Thermians recreate the ship from the episodes.
* InstantExpert: He becomes an expert in flying the real ''Protector'' after practicing for half an hour. The justification here is that the controls work in the exact manner that he thinks they do because they were modeled on his movements. It's fundamentally a refresher course.
* KidAppealCharacter: On the original show, he was about ten years old.
* KidHeroAllGrownUp: Lt. Laredo is a parody of kid prodigies like ''Series/StarTrekTheNextGeneration'''s Wesley Crusher. At the time of the movie, he's 20 years older, and being put in the position of ''being'' that prodigy he played on the series two decades earlier.
%%* ScreamsLikeALittleGirl:
* TeenGenius: His character on the show is a teen with enough skill and knowledge to pilot a star ship.
* TokenMinority: He is the only black character among the main cast.
* TookALevelInBadass: "Pedal to the metal!" [[spoiler: is spoken when he learns how to pilot the ship in real life.]]


!!Fred Kwan/Tech Sgt. Chen
->Played By: Tony Shaloub
->Voiced By: Paco Mauri (Latin American Spanish dub), Koichi Makishima (Japanese dub)

Chen is in charge of the engine room and the operator of the "digital conveyor" (a version of the ''Franchise/StarTrek'' transporter). He acts in a detached manner and is completely unfazed by the strange and often disturbing events that occur.
* BunnyEarsLawyer: He may be a little nuts or detached but he's good at what he does... eventually.
* CaptainErsatz: Of Scotty although an inversion of him. Like Scotty, he turns out surprisingly skilled, but unlike Scotty deadpans it completely... except at the teleporter, the only thing Scotty never broke a sweat on.
* {{Cloudcuckoolander}}: His spacey attitude (no pun intended). A cut scene indicated the [[TheStoner reason behind this]].
* ColdHam: Hilariously underreacts to everything.
%%* GreaseMonkey
* FakeNationality: "Kwan's not even my real name!" In-universe, he's an actor who plays a guy who changed his name then played a guy who is fake. In the process, the real actor played a guy who played a guy and must become that guy even though he's fictional.
* [[GranolaGirl Granola Guy]]: After his team solves a problem, he has a GroupHug with them.
* HeroicBSOD: He freaks out when he's asked to operate the "digital conveyor," which could kill Jason if he does it wrong.
** He also has a guilt-ridden one after [[spoiler:Jason tells Mathesar the truth about the show not being real.]]
* InterspeciesRomance: He eventually falls in love with a Thermian.
* LovableNerd: In reality, he's only a ''Hollywood'' nerd.
%%* MacGyvering
%%* MrFixit
* NoCelebritiesWereHarmed: To James Doohan, playing the engineer with an obvious case of FakeNationality (here made even more obvious by his playing a different ''race'').
* ObfuscatingStupidity: Or maybe not; frankly, it's hard to tell.
* TheStoner: It's cut out for the most part, but he is explicitly asked whether he's high at one point, he's constantly munching on snacks, and he's ''way'' too relaxed.
* TokenMinority: Parodied with the Lebanese-American Tony Shalhou [[FakeNationality somehow]] being representative of a Chinese character. When the Thermians are naming the crew, he narrows his eyes when his character's name is spoken. Apparently, that's supposed to be enough to make him seem Chinese.
** This may actually be a nod to the fact that the Chinese-surnamed Dr. Soong was played by the very-definitely-not Asian Brent Spiner.
* UnfazedEveryman: He genuinely doesn't seem that freaked out by the events around him... aside from his doubts about successfully operating the digitizer.


!!Guy/Crewman #6
->Played By: Creator/SamRockwell
->Voiced By: Herman López (Latin American Spanish dub), Kazuhiro Yamaji (Japanese dub)

An actor who played an extra in one episode of ''Film/GalaxyQuest''. He suffers from paranoia that he will end up in a {{Red Shirt}}'s [[HesDeadJim natural state]] during the film. The character is based on real-life ''Franchise/StarTrek'' actor Guy Vardaman, who played an uncredited background character.
* {{Adorkable}}: Nearly two decades after his cameo on the show, he's still nothing but proud of it and perfectly satisfied with this tiny blip of a career.
* AscendedExtra: He played a RedShirt on one episode of the show. At the end, when the show is re-launched, he makes the opening credits. He doubles as an AscendedFanboy, since it seems he was a fan who managed to score a background role in the show.
* ButtMonkey: But not nearly to the extent he thinks he is. He's more of a strange, whiny nuisance to the others.
* CasanovaWannabe: In a blink-and-miss moment, where he tries to hit on a female stage hand, she brushes him off for being a [[MyBelovedSmother mother boy]].
* CowardlyLion: Spends most of the movie whimpering in a corner about the gory death he thinks is inevitably coming for him, but is prepared to go on a suicidal charge into the enemy lair, reasoning that if he's going to die he might as well die in a blaze of glory. [[spoiler: Luckily for him, he's not destined to die because he's mistaken about his role as a RedShirt.]]
* GenreSavvy:
** He knows full well that {{Red Shirt}}s like the character that he played in the ''Galaxy Quest'' show-within-a-film tend to die to prove the seriousness of the situation, and is terrified that the same fate will befall him now that they're in a situation that mirrors the show's conventions.
-->Didn't you guys ever ''watch'' the show?
** Also the scene with the alien miners.
-->Of course they're cute ''now''. But in a second they're going to turn ''mean'' and ''ugly'' somehow and then there are going to be a million ''more'' of them!
* HisNameReallyIsBarkeep: He is even more freaked out than the rest of the cast that they have just been transported aboard an alien ship and as he is the only one the Thermians do not recognise, he just introduces himself as "Guy", making the audience think for the whole movie that he was too shocked to even remember his own name and in-keeping with the fact that he is supposedly just a disposable RedShirt. However, the credits for the in-universe reboot of the shot reveal that his name really ''is'' Guy; his full name is [[spoiler: Guy Fleegman.]]
* {{Irony}}: Guy keeps freaking out that he's gonna get killed throughout the entire movie. [[spoiler: When Sarris manages to kill off the crew in the surprise attack, he's the only one shown not being shot.]]
* MeaningfulName: His name is Guy, in keeping with him being just a random extra nobody really knows. In fact, it's not until the end of the movie that we learn "Guy" actually is his name at all, rather than just everyone calling him "guy" because they don't know his real name (he introduces himself as Guy, but at the time he was having a FreakOut so it seems like he was just panicking).
* MonsterMunch: A parody of it; his in-show character was "eaten by a lava monster before the first commercial"; he's terrified that he's going to buy it too.
* MyBelovedSmother: Downplayed. In a blink-and-miss scene, we learn from a stage hand that Guy still lives with his mother.
* NoNameGiven: He was one of these in the show, identified only as "Crew Member #6". His panic over the fact that this was connected to his RedShirt status leads to him freaking out and apparently forgetting that he actually has a name in real life:
-->'''Gwen:''' Guy, you ''have'' a last name.\\
'''Guy''': "''[[SanitySlippage Do I?]]'' '''[[SanitySlippage DO I?!]]'''"
** If you listen carefully, though, you will hear Jason addressing him as "Fleegman" once when they're on the desert planet.
* OnlyOneName: For most of the movie, which he uses as prime evidence of his unlikelihood to survive.
-->'''Gwen:''' Guy, you ''have'' a last name.\\
'''Guy:''' ''Do I?'' ''DO I?!''
** The credits at the end list it as [[spoiler:Fleegman]].
* PluckyComicRelief: Fred tries to comfort Guy in the third act by suggesting maybe he's this - in fact, Fred becomes the TropeNamer as a result. [[spoiler: Realizing that he's this and not a RedShirt is a great relief to him.]]
* PromotionToOpeningTitles: Having played a RedShirt on the canceled ShowWithinAShow, he now gets name-dropped on the new show's title screen playing the chief of security, a position held by the late [[Series/StarTrekTheNextGeneration Tasha Yar]].
* RedShirt: On the show, he got killed by a lava monster shortly into episode 81. He spends most of the film terrified that he will die since it was his only role on the show.
-->(When the whole cast are in equal danger) '''Gwen:''' Let's get out of here before one of those things kills Guy.
* RedHerringShirt: In the movie proper his RedShirt status is not being actualized. Surprisingly he turns out to be the PluckyComicRelief. Notice, [[spoiler: when Sarris goes on a killing spree, Guy is the only character ''not'' killed or mortally wounded]].
* SixthRanger: He gets a promotion from RedShirt to crewmember. [[spoiler: Not only in real life, but in the show's eventual resurrection]].
* TheTeamWannabe: His aim is to be part of the main cast.
* UnfortunateName: "Guy Fleegman" -- and that's the ''actor's'' name - in the show, he was just "Crewman #6". [[spoiler: When he joins the cast of the new series, he's given the AwesomeMcCoolname 'Roc Ingersol']].
* WrongGenreSavvy: Rare example of it working in the character's favor. He's terrified of getting killed because he thinks he's the RedShirt. Fortunately for him it turns out he's actually the PluckyComicRelief.
* YouAreNumberSix: His original character is Crewman Number Six. [[spoiler: When the ShowWithinAShow gets rebooted, this is averted as he's re-cast as Chief Of Security.]]

->Played By: Creator/RobinSachs
->Voiced By: Ricardo Brust (Latin American Spanish dub), Atsuki Tani (Japanese dub)

A genocidal alien warlord, Sarris is the force that ultimately causes the Thermians to seek the Galaxy Quest team out for help. When he turns up, things get a lot worse.
* AxCrazy: The guy is slightly nuts.
* BadBoss: The man decapitated his previous [[TheDragon lieutenant]] for failing to raise the shields in time. He then leaves several loyal soldiers to die on the Thermian ship.
* BigBad: He is TheLeader of the evil aliens and the reason that Thermians called the main cast to help them. DiscussedTrope between Jason and Laliari:
--> '''Jason''': Sarris is the bad guy, right?
--> '''Laliari''': Oh, yes, sir. He's a very bad man indeed. He has [[ColdBloodedTorture tortured our scientists]], [[WeWillUseManualLaborInTheFuture put us to work in the gallium arsenide mines]], [[SexSlave captured our females for his own demented purposes]]...
--> '''Jason''': Yeah, yeah, yeah, yeah. I got the picture.
* [[spoiler: CharacterDeath: He dies when Jason shoots him and he is disintegrated.]]
* ColdBloodedTorture: He did this to the Thermian commander who preceded Mathesar.
* DeadpanSnarker: Emphasis on the deadpan. If he makes a joke at all, it's usually more terrifying than funny.
* EvilBrit: Played by Robin Sachs.
* EvilIsHammy: He generally gets a bit loud, though it's often terrifying instead of funny. When he stops being hammy, he's ''really'' serious.
* EvilPlan: According to Laliari, it seems to be basic conquest for slaves and territory.
* EyepatchOfPower: Wears one [[EyepatchAfterTimeSkip after surviving the first attack]]. At least he's doing better than his first officer...
* ForTheEvulz: He already had the information he needed and explicitly invokes this trope.
-->'''Thermian captain:''' I have told you all I know... if you have any mercy within you, please, let me die.
-->'''Sarris:''' When I grow weary of the noises you make, you shall die!
* GallowsHumor: Leading to possibly his only funny moment in the entire film.
--> '''Jason''': Hey Sarris, how're you doing?\\
'''Sarris''': ''[shows the head of his lieutenant mounted on a stick]'' Better than my lieutenant!
* GreenAndMean: He and the rest of the Fatu-Krey soldiers are green-skinned and evil in contrast to the humans and the appearance-generator version of the Thermians.
* HandicappedBadass: He's horribly cruel and very depraved, but the guy is a good straight-up fighter in spite of lacking one eye and having a prosthetic hand. [[spoiler: And this is just a day or two ''after'' he was crippled when Nesmith ordered the Thermians to bombard his ship]]
* HellishPupils: His eyes are yellowish-green with dual pupils (one large one and a smaller one next to it).
* KickTheDog: Oh, where to begin.
** He tortured the Thermian's commander to death [[ForTheEvulz to hear him scream]].
** He presented the Thermians promises of mercy only to continue his genocide.
** Watch as the ''Protector II'' leaves the space port. You can see Thermia utterly devastated, with only a wedge of the entire planet left. Sarris is the likely culprit.
** He forces Jason to reveal to the Thermians that everything they believed in was a lie.
** Even when he has nothing to gain from, he decides to self-destruct the Protector and have the air sucked out of the crew chambers the Thermians occupy.
* KnightOfCerebus: After it turns out that he's actually a real threat and not something from a B-movie, the humor rating drops significantly whenever he's onscreen, and one of the only two jokes involving him is a bit of GallowsHumor where he reveals he decapitated his lieutenant. And, because he's a real alien military leader, he's significantly more GenreSavvy than the average villain in a movie of this type. It takes [[spoiler: a maneuver no one in their right mind would do AND the activation of the Omega-13 AND some deft shooting skills from Jason/Taggart to finally take him down.]]
* LargeHam: The actor playing Sarris (Robin Sachs) hams it up considerably.
* PreAssKickingOneLiner: Delivers one before opening fire on the Protector in a response to Nesmith insulting him when he thought he couldn't hear.
-->'''Sarris:''' Perhaps I'm not as stupid as I am ugly, commander.
* RedRightHand: He has an eyepatch and a prosphetic hand after the first attempt to fight him fails.
* ThisCannotBe: He yells "Impossible!" when [[spoiler:the core detonation sequence on the Protector is stopped]].
* VileVillainSaccharineShow: The film is a lighthearted ActorRoleConfusion comedy with endearingly innocent aliens and the cast of a Star Trek {{Expy}}... and he is a sadistic, genocidal maniac, not above murdering underlings who fail him, who takes a specific glee in forcing Jason to BreakTheCutie by explaining the nature of their "historical documents" to a culture that has no concept of fiction.
* VillainousBreakdown: After the crew of the ''Protector'' start fighting back and manage to take back the ship, he completely loses patience with them, demanding his men to find and kill them even though it's a waste of manpower and runs the risk of [[BadBoss killing the men that are still on the ship]].

->Played By: Enrico Colantoni
->Voiced By: Javier Rivero (Latin American Spanish dub), Eiji Ito (Japanese dub)

The leader of the Thermians, though he steps back to let Jason lead. He and his other people are completely ignorant of any type of falsehood, including fictionalized entertainment, and thus they have no idea that ''Galaxy Quest'' was just a TV show.
* ActuallyPrettyFunny: Seen laughing with the rest of the Thermian crewmembers over [[spoiler: how the "Historical Documents" they based their entire culture on is nothing but fiction.]]
-->''"Their ship was a model, as big as this!"'' (holds up his thumb and forefinger an inch apart) ''"A very clever deception indeed! [[AnnoyingLaugh Ah Lah ah lah ah lah!]]"''
* BreakTheCutie: When Jason finally tells him the truth, Mathesar is broken almost beyond the point of speech.
* CaneFu: [[spoiler:Mathsar uses his cane to beat down Sarris after getting tortured.]]
* HeroicBSOD: He breaks down when Jason tells him the truth about ''Galaxy Quest''.
* MrExposition: By virtue of AsYouKnow -- Mathesar is eager to show the crew how perfectly they've replicated the ''Protector'', thus explaining the ship's functions to the audience as well.
* PassingTheTorch: When the actors leave at last, Jason appoints Mathesar Commander of the ''Protector''.
* StarfishAliens: Without his [[AFormYouAreComfortableWith holographic disguise,]] he looks vaguely like conjoined twin octopi.
* StrangeSyntaxSpeaker: Thermians speak a language ''[[StarfishLanguage very]]'' [[StarfishLanguage different from English.]] They use translators to get around this, but their speech still comes out very stilted and strange, somewhere between this trope and WhatTheHellIsThatAccent.
* YouAreBetterThanYouThinkYouAre: When he wishes that the actors would stay because the Thermians have no commander, Nesmith looks at him and says they have a ''great'' commander.


->Played By: Missi Pyle
->Voiced By: Dulce Guerrero (Latin American Spanish dub), Noriko Oka (Japanese dub)

A female Thermian who becomes Fred's girlfriend.

* AscendedFanboy: Joins the crew in the reboot of the show.

->Played By: Patrick Breen
->Voiced By: Creator/JoseAntonioMacias (Latin American Spanish dub), Creator/KoichiTochika (Japanese dub)

A Thermian who greatly admires Alexander's character, Dr. Lazarus.

* DiedInYourArmsTonight: [[spoiler:After being shot by one of Sarris' {{mooks}}. He lives just long enough to hear Alexander promise to avenge his death.]]
* DiesWideOpen: His eyes remain open [[spoiler:when he dies in Alexander's arms]].
* MajorInjuryUnderreaction: He initially doesn't seem to register any pain [[spoiler:when Sarris' {{mooks}} shoot him]].

[[folder:The Thermians]]

* AccentUponTheWrongSyllable: They arrrrrrre... notverygood at imitating human speech-patterns.
* BeautyEqualsGoodness: Subverted. The cast and audience are led to believe they are pale but handsome humanoids that are also friendly, helpful, and generally benign. They're actually StarfishAliens covered in tentacles who use "appearance generators", and are less human than Sarris and his crew, but still nicer.
* BizarreAlienPsychology: They have only recently been exposed to the idea of dishonesty. They cannot imagine any reason to say something that is not the absolute truth, and therefore have no concept of fiction in storytelling, leading them to confuse the cast of a ''Franchise/StarTrek''-like TV show for real-life spacefaring heroes. Averted by their enemies; Sarris figures out what's going on the second he sees a clip of the show.
* BrutalHonesty: One of the Thermians describes the pig-lizard's teleporter mishap very matter-of-factly. Much to Jason's dismay, since the teleporter is his only way off the planet.
-->'''Thermian:''' But the animal is inside out--\\
--And it exploded.
* CannotTellALie: They have no concept of lying or fiction in their culture. They don't even have ''acting''. The humans learn this the hard way. It gets even worse in that they're beginning to learn about malicious lying from Sarris, but still have no concept of benign fiction not intended to deceive.
* CannotTellFictionFromReality: They have this as one of their [[PlanetOfHats hats]]. They lament the plight of the castaways in ''Series/GilligansIsland''.
* CargoCult: They are an inversion of real-life cargo cults: they produce real, working technology based on nonfunctional, for-show templates.
* HumanAliens: Subverted when it turns out that the cephalopod-like Thermians use "appearance generators" to put the visiting Earthlings at ease (and presumably, to man the ''Protector II'' prior to their arrival); much to Fred's delight and [[SickAndWrong Guy's dismay]].
* HumorlessAliens: They have no sense of humor, until the end where they laugh at the "trick" Jason pulled off on Sarris. "The ship was a model! Only ''this'' big!"
* InnocentAliens: For example, the concept of deception is so completely foreign to them they don't know what actors are.
* LastOfHisKind: The Thermians on board the ''Protector'' are all what's left of their race.
* NoSuchThingAsAlienPopCulture: They obviously don't have a pop-culture of their own, otherwise they would have seen through the sham of the Galaxy Quest TV series not being real. Sarris's race apparently does, since he realizes what he's seeing immediately.
* OctopoidAliens: They have this as their default form, but [[AFormYouAreComfortableWith they disguise themselves as humans so that the main cast will understand them.]]
* PerpetualSmiler: They always have some sort of smile on their faces, [[DissonantSerenity even when being tortured]]
* PrettyBoy: Each of the Thermians... or should we say, [[StarfishAliens their holographic disguises]].
* RavenHairIvorySkin: They invoke this with their appearance generators. Their study of "historical documents" obviously indicated that this was a pleasing image for humans.
* SciFiBobHaircut: Their human holograms all include this as the hairstyle.
* StarfishAliens: In their native form they look like [[RuleThirtyFour an octopus mating with a squid]]. Sarris' insectoid race are standard PeopleInRubberSuits.
* StarfishLanguage: When the Thermians' translators are broken (or not on), their speech sounds like shrieking mixed with NailsOnABlackboard. The DVD release contains a Thermian Language audio track, so you can listen to the ENTIRE MOVIE like this if you wish.
* TranslatorMicrobes: They do not speak English. They use a device for that.


[[folder:The Beryllium Miners]]

* BeautyEqualsGoodness: Subverted with the inhabitants of the planet they visit, who appear childlike and cute until the fangs come out. Lampshaded (like most of the film) by Guy.
-->'''Guy:''' In a minute they're going to get mean, and they're going to get ugly somehow, and there's going to be a million more of them.
* DittoAliens: The blue-skinned miners are almost impossible to tell apart.
* InnocentAliens: Subverted. They look cuddly and sweet, but are sadistic cannibals.
* {{Killer Rabbit}}s: While the rest of the crew is {{Squee}}ing about how adorable the child-like alien miners are, the very GenreSavvy Guy worries, "Oh, sure, they're cute now. But they're going to get mean. And they're going to get ugly somehow. And there's going to be thousands of them." Seconds later, he's proved right.
-->'''Guy:''' ''(frustrated)'' Did you guys ever '''''watch''''' the show?!
* MonstrousCannibalism: One of their number comes out of the mine with a limp. It's promptly pounced on and eaten the moment its back is turned.

[[folder:NSEA Protector]]

* CoolStarship: Fast, sleek, and can get blasted halfway to hell by SpaceMines and keep flying.
* ExplosiveOverclocking: Holding the turbo button for anything more than a quick speed boost is ''very'' bad for the engines.