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* DyingLikeAnimals: He'd have Earth become an Ostrich.
* Eagleland: Type 2. He honestly believes that the Goa'uld and their advanced weapons and starships are ''[[SmallNameBigEgo nothing]]'' against the might of the [[PatrioticFervour Red, White and Blue]], by God!


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* TooDumbToLive: He repeatedly tries to get the Stargate program shut down, even though the Goa'uld are ''already'' aware of humanity and have learnt the location of Earth. Just how stupid this is gets lampshaded by ''everyone''.

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He\'s not the main good guy. He is the leader of the team though


* TheHero


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*TheLeader: A type II. He always has a cool head.

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* SkunkStripe: His long lifespan meant that Teal'c more or less stayed that same while his friends grew old in "Unending." Fortunately, when an aged Carter finally discovered a way to save everyone, Teal'c's unmarred strength allowed him to complete the mission and return to the present. The only clue to his true age is a glaring stripe of white hair.



* SpockSpeak
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* TheChosenOne: The Asgard view Jack as this, having not only survived his encounter with an Ancient Repository, but actually managed to figure out how to dial the Stargate to reach another ''Galaxy'' so he could ask for their help.
** It's later revealed they named an entire class of Asgard vessels after him.
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** Richard Dean Anderson once asked the military adviser on the show if he'd met anyone as bad as Jack. [[RealityIsUnrealistic "Worse,"]] was the reply.

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** Richard Dean Anderson once asked the military adviser on the show if he'd met anyone officers as bad as Jack. [[RealityIsUnrealistic "Worse,"]] was the reply.
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** Also of Sokar. Both are introduced as exceptionally evil Goa'uld, exiled from the System Lords for being [[EvenEvilHasStandards too evil, even by their standards]]. They even have a [[InTheHood similar fashion sense]], and were played by the same actor to boot.

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** He has undoubtedly become one at about season seven.



** He has undoubtedly become one at about season seven.
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** He has undoubtedly become one at about season seven.
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* WellIntentionedExtremist: Though the Trust was motivated mainly by {{greed}}, they also genuinely thought the SGC wasn't living up to its mandate to advance Earth's interests in the galactic arena. Unfortunately their approach had a way of pissing off Earth's allies: instead of trying to trade or borrow tech (and frequently butting up against politics and {{alien non-interference clause}}s), their operatives simply stole the tech and damn the consequences for Earth. In season 3 this nearly resulted in the Tollans, Tok'ra, and Asgard breaking off diplomatic relations. In season 8 they branched out into [[spoiler:''stealing the freaking Stargate'' and using it to launch chemical attacks indiscriminately against ostensibly Goa'uld worlds. Since they didn't exactly check beforehand to see who was ''actually'' in control there, this resulted in the deaths of thousands of rebel Jaffa and at least one Tok'ra.]]

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* WellIntentionedExtremist: Though the Trust was motivated mainly by {{greed}}, they also genuinely thought the SGC wasn't living up to its mandate to advance Earth's interests in the galactic arena. Unfortunately their approach had a way of pissing off Earth's allies: instead of trying to trade or borrow tech (and frequently butting up against politics and {{alien [[AlienNonInterferenceClause alien non-interference clause}}s), clauses]]), their operatives simply stole the tech and damn the consequences for Earth. In season 3 this nearly resulted in the Tollans, Tok'ra, and Asgard breaking off diplomatic relations. In season 8 they branched out into [[spoiler:''stealing the freaking Stargate'' and using it to launch chemical attacks indiscriminately against ostensibly Goa'uld worlds. Since they didn't exactly check beforehand to see who was ''actually'' in control there, this resulted in the deaths of thousands of rebel Jaffa and at least one Tok'ra.]]
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That one redirects to historical Templars. And I rather think the \"villain believing his cause just\" was intended.


* KnightsTemplar

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* KnightsTemplarKnightTemplar
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* SixthRanger

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* SixthRangerSixthRanger: [[LampshadeHanging Lampshaded]] by the title sequence after her official inclusion in SG-1. As the four other members of the team prepare to step through the gate, Vala is shown running in to catch up with them.
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* EmperorScientist: Is a genius in his own right, and definitely has ambitions to rule the galaxy (which he almost managed in the aftermath of Anubis' defeat, but before the arrival of the Replicators, and [[spoiler: in the alternate timeline of Continuum]]). A brilliant computer scientist, he understands the Gate system and the Ancient's incredibly complex, elegant dialing program better even that Samantha Carter. He also managed to clone himself many times over, increasing his power manyfold, managed to steal Asgard beaming technology from Anubis (who stole it from Thor), took control of the invincible Kull warriors from Anubis, defeated the Replicators (SG-1 couldn't have wiped them out without his dialing program, though Nerus may have had a hand in that), the list goes on.
* GoingNative: In Season 9, he spends some time hiding on Earth and afterwards started to incorporate into his schemes ideas he got from past missions of the SGC. He also started using the human voice and, in ''StargateContinuum'', he called the president with a cell phone to discuss a "peaceful" solution. (The other Goa'ulds thought he went insane because he didn't use the traditional "blast them back to the Stone Age" solution.)

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* EmperorScientist: Is a genius in his own right, and definitely has ambitions to rule the galaxy (which he almost managed in the aftermath of Anubis' defeat, but before the arrival of the Replicators, and [[spoiler: in [[spoiler:in the alternate timeline of Continuum]]).''Continuum'']]). A brilliant computer scientist, he understands the Gate system and the Ancient's incredibly complex, elegant dialing program better even that Samantha Carter. He also managed to clone himself many times over, increasing his power manyfold, managed to steal Asgard beaming technology from Anubis (who stole it from Thor), took control of the invincible Kull warriors from Anubis, defeated the Replicators (SG-1 couldn't have wiped them out without his dialing program, though Nerus may have had a hand in that), the list goes on.
* GoingNative: In Season 9, he spends some time hiding on Earth and afterwards started to incorporate into his schemes ideas he got from past missions of the SGC. He also started using the human voice and, in ''StargateContinuum'', ''Film/StargateContinuum'', he called the president with a cell phone to discuss a "peaceful" solution. (The other Goa'ulds thought he went insane because he didn't use the traditional "blast them back to the Stone Age" solution.)
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* ChronicHeroSyndrome: If Jack encounters a serious danger to the local population on the other end of a stargate, he ''will'' intervene, without hesitation. This tendency has led to more than one very fortunate alliance with another species or human society.

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* ChronicHeroSyndrome: If Jack encounters a serious danger to the local population on the other end of a stargate, Stargate, he ''will'' intervene, without hesitation. This tendency has led to more than one very fortunate alliance with another species or human society.



* TheCameo: The ''Series/StargateUniverse'' pilot had Eli learn about the stargate program by watching [=DVDs=] hosted by Daniel.

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* TheCameo: The ''Series/StargateUniverse'' pilot had Eli learn about the stargate program Stargate Program by watching [=DVDs=] hosted by Daniel.



The token female of the team. Like Daniel Jackson, served as the voice of reason, as opposed to O'Neill's gung-ho approach to problems. As a scientist, was the source of much {{Technobabble}} and AppliedPhlebotinum, usually [[MacGyvering jury-rigged]] to solve this week's problem. Throughout the seasons, she went from "reasonably brilliant" to "genius who would be bathing in Nobel Prizes if not for the secrecy of the Stargate program". Later promoted to full-bird Colonel and [[{{Transplant}} joined]] the [[Series/StargateAtlantis Atlantis Expedition]] after ''SG-1'' was cancelled. As of ''Series/StargateUniverse'', she has been given command of the ''Daedalus''-class battlecruiser ''George Hammond''.

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The token female of the team. Like Daniel Jackson, served as the voice of reason, as opposed to O'Neill's gung-ho approach to problems. As a scientist, was the source of much {{Technobabble}} and AppliedPhlebotinum, usually [[MacGyvering jury-rigged]] to solve this week's problem. Throughout the seasons, she went from "reasonably brilliant" to "genius who would be bathing in Nobel Prizes if not for the secrecy of the Stargate program".Program". Later promoted to full-bird Colonel and [[{{Transplant}} joined]] the [[Series/StargateAtlantis Atlantis Expedition]] after ''SG-1'' was cancelled. As of ''Series/StargateUniverse'', she has been given command of the ''Daedalus''-class battlecruiser ''George Hammond''.



* DeadpanSnarker: very sarcastic when he wants to be. Many Asgard end up being this way, but perhaps especially Hermiod, the Daedalus' Asgard crewmember on StargateAtlantis.

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* DeadpanSnarker: very sarcastic when he wants to be. Many Asgard end up being this way, but perhaps especially Hermiod, the Daedalus' Asgard crewmember on StargateAtlantis.''StargateAtlantis''.



The villain of the original ''Stargate'' movie, an ancient alien who enslaved primative mankind, founded ancient Egypt and thus regards himself as the creator of human civilization. Maintained power by using his SufficientlyAdvancedAlien technology to pose as a god, and was the source of the mythology of the Egyptian god Ra. Was ret-conned in the TV series as being the most powerful of the Goa'uld, an entire species of parasitic aliens who pretty much followed the same modus operandi.

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The villain of the original ''Stargate'' ''Film/{{Stargate}}'' movie, an ancient alien who enslaved primative mankind, founded ancient Egypt and thus regards himself as the creator of human civilization. Maintained power by using his SufficientlyAdvancedAlien technology to pose as a god, and was the source of the mythology of the Egyptian god Ra. Was ret-conned in the TV series as being the most powerful of the Goa'uld, an entire species of parasitic aliens who pretty much followed the same modus operandi.



* DangerouslyGenreSavvy: Especially in ''StargateContinuum''. It's a PeggySue plot with him using all his knowledge and GenreSavvy. If he won, it's indicated the universe would have actually been pretty nice, albeit under the heel of a god-king.

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* DangerouslyGenreSavvy: Especially in ''StargateContinuum''.''Film/StargateContinuum''. It's a PeggySue plot with him using all his knowledge and GenreSavvy. If he won, it's indicated the universe would have actually been pretty nice, albeit under the heel of a god-king.



* PragmaticVillainy: Ba'al wants to win, but win long term. ''StargateContinuum'' shows that ultimately we would've loved him as our ruler, and he would've kept Earth safe, being probably a safer and better world if he won, except for the whole GodKing thing...

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* PragmaticVillainy: Ba'al wants to win, but win long term. ''StargateContinuum'' ''Film/StargateContinuum'' shows that ultimately we would've loved him as our ruler, and he would've kept Earth safe, being probably a safer and better world if he won, except for the whole GodKing thing...



The initial ringleader of the rogue NID operation. Eventually SG-1 finds evidence incriminating him for treason; he defects to the Russians and helps them set up their own abortive stargate program. SG-1 captures him, then breaks him back out when they need help against the NID; he goes on the lam. After helping out the SGC repeatedly against its earthly enemies, they eventually move him off-world for his own protection.

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The initial ringleader of the rogue NID operation. Eventually SG-1 finds evidence incriminating him for treason; he defects to the Russians and helps them set up their own abortive stargate program.Stargate Program. SG-1 captures him, then breaks him back out when they need help against the NID; he goes on the lam. After helping out the SGC repeatedly against its earthly enemies, they eventually move him off-world for his own protection.



* WellIntentionedExtremist: Though the Trust was motivated mainly by {{greed}}, they also genuinely thought the SGC wasn't living up to its mandate to advance Earth's interests in the galactic arena. Unfortunately their approach had a way of pissing off Earth's allies: instead of trying to trade or borrow tech (and frequently butting up against politics and {{alien non-interference clause}}s), their operatives simply stole the tech and damn the consequences for Earth. In season 3 this nearly resulted in the Tollans, Tok'ra, and Asgard breaking off diplomatic relations. In season 8 they branched out into [[spoiler:''stealing the freaking stargate'' and using it to launch chemical attacks indiscriminately against ostensibly Goa'uld worlds. Since they didn't exactly check beforehand to see who was ''actually'' in control there, this resulted in the deaths of thousands of rebel Jaffa and at least one Tok'ra.]]

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* WellIntentionedExtremist: Though the Trust was motivated mainly by {{greed}}, they also genuinely thought the SGC wasn't living up to its mandate to advance Earth's interests in the galactic arena. Unfortunately their approach had a way of pissing off Earth's allies: instead of trying to trade or borrow tech (and frequently butting up against politics and {{alien non-interference clause}}s), their operatives simply stole the tech and damn the consequences for Earth. In season 3 this nearly resulted in the Tollans, Tok'ra, and Asgard breaking off diplomatic relations. In season 8 they branched out into [[spoiler:''stealing the freaking stargate'' Stargate'' and using it to launch chemical attacks indiscriminately against ostensibly Goa'uld worlds. Since they didn't exactly check beforehand to see who was ''actually'' in control there, this resulted in the deaths of thousands of rebel Jaffa and at least one Tok'ra.]]
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* MyGodWhatHaveIDone: In ''TheArkOfTruth''.

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* MyGodWhatHaveIDone: In ''TheArkOfTruth''.''Film/TheArkOfTruth''.
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** Richard Dean Anderson once asked the military adviser on the show if he'd met anyone as bad as Jack. [[RealityIsUnrealistic "Worse,"]] was the reply.
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* EmperorScientist: Is a genius in his own right, and definitely has ambitions to rule the galaxy (which he almost managed in the aftermath of Anubis' defeat, but before the arrival of the Replicators, and [[spoiler: in the alternate timeline of Continuum]]). A brilliant computer scientist, he understands the Gate system and the Ancient's incredibly complex, elegant dialing program better even that Samantha Carter. He also managed to clone himself many times over, increasing his power manyfold, managed to steal Asgard beaming technology from Anubis (who stole it from Thor), took control of the invincible Kull warriors from Anubis, defeated the Replicators (SG-1 couldn't have wiped them out without his dialing program, though Nerus may have had a hand in that), the list goes on.

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* BrickJoke: A rather dark ContinuityNod. In "Abyss," he repeatedly tortures O'Neill to death, often using knives. Fast-forward to "The Quest", when he has to relinquish a posession, they tell him to drop in his knife, which he at first refuses, claming it has... "sentimental value."

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* BrickJoke: A rather dark ContinuityNod. In "Abyss," he repeatedly tortures O'Neill to death, often using knives. Fast-forward to "The Quest", when he has to relinquish a posession, they tell him to drop in his knife, which he at first refuses, claming claiming it has... "sentimental value.""
* BelligerentSexualTension: a ton with Adria, despite their relatively limited interaction. Similar in many ways to the tension between Mal and Inara in {{Firefly}}, and thus possibly a deliberate reference. Gets a little strange, complicated, and maybe a little squicky when Ba'al [[spoiler: implants himself (a clone Goa'uld) into Adria in an effort to take control of the Ori forces in the Milky Way. It works, for a while.]]


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* CrazyEnoughToWork: All of Ba'al's plans are ludicrously audacious, which is a big part of why they generally succeed. It's a testament both to his skill and the sheer, unmitigated gall of his plans that he manages to outlive all the other villains on the show, lasting five seasons and one movie.

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* DragonAscendant: Conspires with SG-1 to [[spoiler: destroy Fifth]], and then leads the rest of Replicators into a full invasion of the galaxy.




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* TheStarscream

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* DragonAscendant: Conspires with SG-1 to [[spoiler: destroy Fifth]], and then leads the rest of Replicators into a full invasion of the galaxy.



* TheStarscream: Tricks SG-1 into helping her [[spoiler: destroy Fifth]] before leading the rest of the Replicators into a full invasion of the galaxy.

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* TheStarscream: Tricks SG-1 into helping her [[spoiler: destroy Fifth]] before leading the rest of the Replicators into a full invasion of the galaxy.


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* FaceHeelTurn: After SG-1 leaves him for dead.

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[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/replicatorcarter_6561.jpg]]



* DragonAscendant: Conspires with SG-1 to [[spoiler: destroy Fifth]], and then leads the rest of Replicators into a full invasion of the galaxy.




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* TheStarscream: Tricks SG-1 into helping her [[spoiler: destroy Fifth]] before leading the rest of the Replicators into a full invasion of the galaxy.
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-->'''Walter''': You have to push the button to talk, sir.
-->'''Landry''': ''Sigh''...Thank you, Walter.
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* UltimateJobSecurity: He's broken enough rules and caused enough trouble to get himself court-martialed every day of the week but he keeps his rank and his post.

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* UltimateJobSecurity: He's broken enough rules and caused enough trouble to get himself court-martialed every day of the week but he keeps his rank and his post. Probably something to do with the extremely secret nature of the SGC and the fact that no one else, with the exception of Teal'c and the other members of SG-1, has anything like his level of experience.
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* JerkassFacade
* JerkJock: Mostly a mellowed version, however he stills shows disdain towards scientists with the exception of Daniel and Carter who are two of his closest friends.

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* JerkassFacade
JerkassFacade: Can put a up a truly ''nasty'' one when he feels like it. Has been incredibly cruel to just about every major character, usually in service of some ulterior goal. Otherwise a NiceGuy, unless his pet peeves have been pushed.
* JerkJock: Mostly a mellowed version, however he stills still shows occasional disdain towards scientists with the exception of scientists, Carter and Daniel and Carter who are two of his closest friends.being major, obvious examples.
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* ColonelBadass, later promoted to FourStarBadass. The ColonelBadass is so iconic that he goes back to Colonel in alternate timelines.

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* ColonelBadass, later promoted to FourStarBadass.[[FourStarBadass Three-Star Badass]]. The ColonelBadass is so iconic that he goes back to Colonel in alternate timelines.
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* TheCameo: In ''Series/StargateUniverse'', he makes guest appearances in his capacity as head of Homeworld Command.

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* TheCameo: In ''Series/StargateUniverse'', he makes guest appearances in his capacity as head of Homeworld Command.Security.



* PutOnABus: Season eight saw his role on the show much reduced by his promotion to Brigadier General, due to RDA wanting to spend more time with his family. He was soon transferred to the Pentagon to head Homeworld Command.

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* PutOnABus: Season eight saw his role on the show much reduced by his promotion to Brigadier General, due to RDA wanting to spend more time with his family. He was soon transferred to the Pentagon to head Homeworld Command.Security.
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* BerserkButton: Threatening or harming anyone he cares about is really not good a idea!
* BigGood: As of ''Universe'', Jack effectively is in charge of leading Earth.

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* BerserkButton: Threatening or harming anyone he cares about is really is...not a good a idea!
idea.
* BigGood: As of ''Universe'', Jack effectively now-Lieutenant General O'Neill is in charge command of leading Earth.Homeworld Security, and thus is basically responsible for and in command of everything that happens off-world.
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* AFatherToHisMen: "As long as there is a snowball's chance in hell of my officer coming out of this alive we're going to take it!" He even addresses Kawalski as 'son'.

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* AFatherToHisMen: "As long as there is a snowball's chance in hell of my officer coming out of this alive we're going to take it!" He even addresses Kawalski Kawalsky as 'son'.
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* HospitalHottie

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* {{Badass}}: for a three-foot tall grey guy, he kicks a lot of ass. Probably something to do with the world-destroying power of the ships he commands.



* DeadpanSnarker: very sarcastic when he wants to be. Many Asgard end up being this way, but perhaps especially Hermiod, the Daedalus' Asgard crewmember on StargateAtlantis.




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* {{Troll}}: Nevertheless, has a very evident sense of humor, and sometimes has fun at SG-1's and Stargate Command's expense. Perhaps especially when he offers Carter Asgard food, and tells her he likes the yellow ones. And when he beams half the food out of Stargate Command without having refrigerators, forcing SG-1 to chow down on ice cream and other perishables. Not to say they really mind. More generally, when he beams people and/or things out of the SGC unilaterally, causing [[HilarityEnsues hilarity to ensue]] in ways that are just too specific not to have been Thor's intent, at least to some degree.
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[[foldercontrol]]

[[folder:The Original Cast]]

!Lieutenant General Jack O'Neill (Richard Dean Anderson)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Neill_5986.JPG]]
The leader of the original SG-1 team. Gradually went from the tough, no-nonsense portrayal pioneered by KurtRussell in the movie to a more light-hearted and [[DeadpanSnarker sarcastic]] character that RDA was more accustomed to playing. Had zero tolerance for {{Technobabble}} and was of low opinion of any species or nationalities besides his own, even though he did befriend [[SufficientlyAdvancedAlien Thor]]. As of ''Series/StargateUniverse'', he is a three-star general.
* AcePilot: He can fly ''anything''.
* ActorAllusion: O'Neill is from Minnesota, the same state MacGyver is from (also Richard Dean Anderson's home state). Like MacGyver, O'Neill is an astronomy enthusiast ([=MacGyver=] was shown living in an observatory in the pilot of his TV show). An inversion: Jack likes having a gun and will protest whenever he's told to not carry one, while [=MacGyver=] did not like guns and was known for avoiding their use. Like [=MacGyver=], O'Neill is an avid fisherman. Both [=MacGyver=] and O'Neill are shown to be hockey fans.
* AdultChild: He sometimes acts like this when he is relaxed and off-duty.
* BerserkButton: Threatening or harming anyone he cares about is really not good a idea!
* BigGood: As of ''Universe'', Jack effectively is in charge of leading Earth.
* BookDumb: It's implied that he's actually a lot smarter and more knowledgeable than he lets on, but just pretends to be dumb in order to mess with people, leading to a stunned pause when he knew what an "accretion disk" is.
* BunnyEarsLawyer
* TheCameo: In ''Series/StargateUniverse'', he makes guest appearances in his capacity as head of Homeworld Command.
* TheCombatPragmatist: Though O'Neill shows plenty of restraint, he doesn't play around when he needs to start killing. In the first season, for example, he has no compunctions with sneak-attacking a Jaffa soldier, throwing him to the ground, and cutting his throat.
* ChronicHeroSyndrome: If Jack encounters a serious danger to the local population on the other end of a stargate, he ''will'' intervene, without hesitation. This tendency has led to more than one very fortunate alliance with another species or human society.
* ColonelBadass, later promoted to FourStarBadass. The ColonelBadass is so iconic that he goes back to Colonel in alternate timelines.
* DeadpanSnarker: So much so that when a doppelganger starts aping him with deadpan, emotionless tones, no one thinks this is strange at first.
* DoesNotLikeWomen: Averted. In "Children of the Gods" when Carter suspects this is the reason he objected to having her on his team, he reveals that it's not because she's a woman, its because he doesn't like ''scientists''.
* GoingNative: "A Hundred Days."
* GoodIsNotNice: Some fans were upset how he was portrayed in ''Universe'', being willing to do ''anything'' to safeguard Earth... seemingly forgetting that Jack freely admits he spent most of the 1980's performing ''black-ops''.
* GrammarNazi
-->"You ended that sentence with a '''preposition'''! ''Bastard!''"
* TheHero
* HurricaneOfEuphemisms
* InvisibleMainCharacter: Spoofed in "200."
* JerkassFacade
* JerkJock: Mostly a mellowed version, however he stills shows disdain towards scientists with the exception of Daniel and Carter who are two of his closest friends.
* TheMcCoy: Bases his decisions on emotions rather than rules or reason. One time he wanted to bring an extra SG team to a planet that was conducting a murder trial for Teal'c. His {{plan}} was to show off his BiggerStick and hope they surrendered. His motivation was saving a teammate and he was willing to violate every law on that planet (and several on his own) to make it happen.
* MilitaryMaverick: Doesn't have much respect for rules despite TheChainsOfCommanding.
* ObfuscatingStupidity: Several characters mention that O'Neill is much smarter than he pretends to be; he's just very military in his thinking and would like to be told that yes, this thing ''will'' do what he thinks it will rather than someone giving him a lengthy {{Technobabble}} explanation on ''why'' it will do what he thinks it will.
* OnlyKnownByTheirNickname: His full name is Jonathan J. O'Neill.
* TheOtherDarrin: Portrayed by Kurt Russell in the movie, where he was "O'Neil" with one L, and Richard Dean Anderson in the series.
** [[LampshadeHanging The other one had no sense of humor]].
* ParentalSubstitute: Surrogate uncle to Skaara.
* PutOnABus: Season eight saw his role on the show much reduced by his promotion to Brigadier General, due to RDA wanting to spend more time with his family. He was soon transferred to the Pentagon to head Homeworld Command.
* ThrowItIn: According to the producers on commentaries, most of O'Neill's humourous dialogue for the first two seasons were improvised by [=RDA=]. After that, the writers got used to his sense of humour.
* TurnInYourBadge: Subverted. [[spoiler: It was a ReverseMole plan to recover technology stolen by a rogue SG team.]]
* UltimateJobSecurity: He's broken enough rules and caused enough trouble to get himself court-martialed every day of the week but he keeps his rank and his post.
* UnresolvedSexualTension: By the bucketful with Samantha Carter.
* TheWatson: He's the one asking Daniel "What are those people doing" or asking Sam "What's that thing do" so they have an opportunity to explain.

!Dr. Daniel Jackson (Michael Shanks)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Daniel_Jackson_2626.jpg]]
TheLancer crossed with TheSmartGuy and another character from the movie, where he was played by James Spader. The team archaeologist and linguist. The latter aspect wasn't of much use in the series when it turned out that [[AliensSpeakingEnglish all the aliens spoke English]], but he found his use in translating written text and providing exposition about ancient artifacts or mythology. He is an idealist and pacifist -- in Seasons 4-5, often to the point of being TheMessiah -- and prefers to resolve conflicts via diplomacy rather than force of arms, often clashing with O'Neill as a result. Has a habit of repeatedly dying and coming BackFromTheDead thanks to AppliedPhlebotinum or intervention of SufficientlyAdvancedAliens. In fact, when Michael Shanks decided to leave and later reconsidered, he stayed dead (and [[AscendToAHigherPlaneOfExistence ascended]]) for an entire season.

* AndStarring: Starting with season 7, he appeared in the opening under "And Michael Shanks as Daniel Jackson."
* AscendToAHigherPlaneOfExistence: So nice, he did it twice.
* AdventurerArchaeologist: This is ''his'' opinion of what the Earth Stargate should be used for.
* BackFromTheDead: So many times it's become a RunningGag.
-->"Dr. Jackson's gonna ''die'' when he sees this!"
-->"What, ''again''?
* BadassBookworm: Well, as close to {{Badass}} as he could possibly get being a squishy civilian scientist.
* BewareTheNiceOnes: Particularly after he stops [[TookALevelInBadass taking crap from people.]]
* TheCameo: The ''Series/StargateUniverse'' pilot had Eli learn about the stargate program by watching [=DVDs=] hosted by Daniel.
* CunningLinguist
* FiveManBand:
** TheLancer: Clashes with O'Neill about how to handle conflict.
** TheSmartGuy: An archeologist/anthropologist/linguist.
** TheFace: The civilian on a military team. He's definitely the team diplomat and the one putting the polite and peaceful foot forward in negotiations.
* HeroicSacrifice: But he kept coming back.
* MeaningfulName: Possibly accidental, but as mentioned in "Upgrades", "Daniel" means "God is my judge" in Hebrew. Think about that for a minute.
* MessiahCreep: This aspect seems to have diminished starting with Season 7, mostly because the Ancients were revealed to have been incredibly NeglectfulPrecursors and less worthy of his idolation.
** The reason the Ascended Ancients kicked him out was because he was too much TheMessiah, not wishing to sit idle while he had the power to actively help people, which was against their rules.
* MrExposition: This is the guy talking about ancient Babylon or future world or whatever.
* MrFanservice
* NerdsAreSexy
* {{Omniglot}}: Speaks twenty-three languages as of "1969". Adding Ancient and Unas makes twenty-five.
* StoicSpectacles
* TastesLikeFriendship: Uses this trope so much, some call it "The Daniel Jackson Method."
* TookALevelInBadass: And ''how''!
* ThroughTheEyesOfMadness
* WrittenInInfirmity: Michael Shanks came down with appendicitis during the filming of "Nemesis", forcing what the scriptwriter called "the fastest rewrite in history". They chose to give Daniel appendicitis, and had him still recovering from surgery in "Small Victories" (averting HollywoodHealing in the process).

!Colonel Dr. Samantha Carter (AmandaTapping)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Samantha_Carter_9347.jpg]]
[[caption-width-right:250:Carter as of ''Series/StargateAtlantis''.]]
The token female of the team. Like Daniel Jackson, served as the voice of reason, as opposed to O'Neill's gung-ho approach to problems. As a scientist, was the source of much {{Technobabble}} and AppliedPhlebotinum, usually [[MacGyvering jury-rigged]] to solve this week's problem. Throughout the seasons, she went from "reasonably brilliant" to "genius who would be bathing in Nobel Prizes if not for the secrecy of the Stargate program". Later promoted to full-bird Colonel and [[{{Transplant}} joined]] the [[Series/StargateAtlantis Atlantis Expedition]] after ''SG-1'' was cancelled. As of ''Series/StargateUniverse'', she has been given command of the ''Daedalus''-class battlecruiser ''George Hammond''.

* AcePilot: Logged over a hundred hours against enemy aircraft during the Gulf War.
* ActionGirl: Though normally the brains of the operation, when an asskicking is called for, Samantha is more than happy to supply it.
* BadassBookworm: ''Blew up a frakking sun.'' Also can go toe to toe with her male teammates in terms of hand-to-hand combat and shooting things with a variety of guns (some of which are bigger than she is). Did we mention she's a certified genius whose brain Jack O'Neill has described as "one of this country's natural resources, if not national treasures"?
* TheCameo: Makes appearances in ''Series/StargateUniverse'' as CO of the USS ''George Hammond''.
* CartwrightCurse: Up until [[CopBoyfriend Pete Shanahan]], every man that she became attracted to (except O'Neill) ended up dying a violent death. Two {{alternate|Universe}} Carters that married O'Neill suffered the same fate.
* HotScientist
* MacGyvering
* MajorlyAwesome, later promoted to ColonelBadass
* NumberTwo
* OmnidisciplinaryScientist: Except for Jackson's fields, and anything specifically mentioned as not her specialty, like vulcanology.
* ParentalSubstitute: To Cassandra Fraiser.
* RememberWhenYouBlewUpASun: The TropeNamer, an achievement [[NeverLiveItDown she never manages to live down.]]
* TheSmartGuy, overlapping with TheLancer [[TropesAreNotBad and]] TheChick.
* TheSquadette
* StrawFeminist: In earlier episodes especially -- it got toned down as the show went on. In the pilot, she famously accused O'Neill of not liking her because her "reproductive organs are on the inside." (Amanda Tapping says she later explained to the writers, "Okay, women don't talk like that.")
** When they re-released the pilot on DVD, they edited that conversation out.
** And mocked in "Moebius" when Alt!Carter practices an argument, then chastises herself for even contemplating to say something so stupid.
* {{Transplant}}: To ''[[Series/StargateAtlantis Atlantis]]''.
* TrickDialogue: Alternate Carter in "Moebius."
* UnresolvedSexualTension: By the bucketful with Jack O'Neill.

!Teal'c ([[ScaryBlackMan Christopher Judge]])
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Tealc_9522.jpg]]
Originally First Prime of Apophis, he defected to the [[HumansByAnyOtherName Tau'ri]] after becoming [[DefectorFromDecadence disillusioned]] with the Goa'uld. He probably underwent the most CharacterDevelopment in the entire show, with Daniel as a close second: he gradually assimilated into the Earth culture, as well as developed complex emotions. About the only thing that remains by now of his original SpockSpeak is his CatchPhrase, "Indeed."

* TheAtoner: Discussed as early as season 5, and again in TheMovie.
* BadassLongcoat: In "200."
* BaldOfAwesome: Until Season 8.
* TheBigGuy
* BlessedWithSuck: His Goa'uld symbiote and later reliance on Tretonin, that renders him immune to all disease.
* BluntMetaphorsTrauma
* BrutalHonesty
* {{Catchphrase}}: "Indeed."
* CunningLinguist: Before Daniel caught up, in the early series Teal'c was the only member of [=SG1=] who could read Goa'uld and several of their obscure scripts.
* DefectorFromDecadence
* TheDeterminator: The biggest example is in ''Awesome/TheArkOfTruth''. He hikes across an entire ''mountain range'' to get to Celestis, where his friends are being held captive, after having been ''shot in the back''.
* FishOutOfWater
* GunsAkimbo: Starting in season 9 with P-90's, of all things--presumably he got bored with his signature staff weapon.
** Semi-justified, in that he used the Staff Weapon up until the fall of the Goa'uld in Season 8, presumably as a TakeThat using their own weapons against them.
* MeaningfulName: "Teal'c" means "strength" in Goa'uld.
* MookFaceTurn: He was Apothis' First Prime before turning on his subordinates.
* NiceHat: Wears a variety of chapeaux whenever he has to go in public, including a fishing hat, fedora, cowboy hat, a fake afro and a headband.
* NotSoStoic: Teal'c displays true emotion rarely, which makes those moments where he does exhibit rage, fear, or sorrow all the more poignant.
* ProudWarriorRaceGuy
* TheQuietOne: Doesn't talk much.
* ReallySevenHundredYearsOld: In the season four episode "The Light", Teal'c is stated to be 101 years old. By series' end, he's over 150. (TimeDilation was involved.)
* SawStarWarsTwentySevenTimes: Favorite movie, apparently.
* ScarilyCompetentTracker
* TheSpock: Originally.
* SpockSpeak
* TheStoic: Takes some surprisingly uncomplicated moral positions. Like feeling no guilt at killing an alternative universe version of himself because 'Ours is the only reality of consequence' and that Teal'c still believed the Goa'uld were gods.
* TokenHeroicOrc: He's a Jaffa, i.e. the mooks SG-1 fights whenever the Goa'uld show up. He's there to prove they're not all bad.
* WarriorPoet
* YouCantGoHomeAgain: Because you are a traitor and your family is shunned even by other outcasts.

!Major General George Hammond (Don S. Davis)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/George_Hammond_2452.jpg]]
Original leader of Stargate Command. Was a BaitAndSwitchTyrant in the first episode, but eventually became a complete pushover who instantly approved nearly any request made by SG-1, no matter how outlandish. The change was signified when he stopped regularly wearing his USAF uniform in favor of a simple blue shirt with a tie, a dress code that was later followed by his eventual successor, General Landry. Was referred to as "Hammond of Texas" by Teal'c's {{Mentor}}, Bra'tac. Was relieved of command in favor of Elizabeth Weir for the duration of the PoorlyDisguisedPilot for ''Series/StargateAtlantis'', who was in turn soon replaced by Jack O'Neill.

* BadassGrandpa: He has grandchildren and, when he goes into the field, he is badass.
* BaitAndSwitchTyrant: One of his first acts was to try to blow up an inhabited planet. It wasn't long before he was downright fluffy, though.
* BaldOfAwesome
* BenevolentBoss: Looks out for the people under his command (even the guests in his facility).
* BigDamnHeroes / GunshipRescue: "Lost City."
* TheCharacterDiedWithHim: Don Davis died of a heart attack a few years after retiring from the show, and Carter mentions in ''[[Series/StargateAtlantis Atlantis]]''' series finale that Hammond died the same way. ''[[Series/StargateUniverse Universe's]]'' USS ''George Hammond'' is named in his honor.
* CatchPhrase: "Godspeed" and "You have a go."
* TheChainsOfCommanding: His more malicious acts (like the above mentioned planet bombing) were because he had orders and unlike Jack "I follow my orders."
* DaChief: General in command of Stargate Command and the ones the heroes answer to. Sitting behind a desk and saying "YouHave48Hours" is mostly his role. Unusual for the role he doesn't worry about backlash from the President if he tweaks the rules.
* AFatherToHisMen: "As long as there is a snowball's chance in hell of my officer coming out of this alive we're going to take it!" He even addresses Kawalski as 'son'.
* LineInTheSand: "Into the Fire."
* PapaWolf: Often acts this in spades towards SG-1.
** Apparently he has his grandkids on his autodialer above the President.
** Lord knows what would have happened in "Chain Reaction" if he had been able to deploy the military forces under his command within the United States.
* ReasonableAuthorityFigure
* TenMinuteRetirement: "Chain Reaction."

!Major Dr. Janet Fraiser (Teryl Rothery)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Janet_Fraiser_9966.jpg]]
For some reason, never appeared in the opening credits despite effectively being a regular. The SGC's medical officer, she often saved SGC members and aliens from the brink of death. She was a nurturing, motherly figure, best expressed when she adopted the alien girl Cassandra. Became Samantha Carter's best friend. [[DroppedABridgeOnHim Had a bridge dropped on her]] in the season 7 two-parter "Heroes." Was eventually succeeded by Dr. Carolyn Lam in Season 9.

* ActionMom
* BadassDamsel: Even when she's held at gun point, it's not a good idea to piss her off.
* BrainyBrunette: More like Brainy Redhead.
* FieryRedhead: Most of the time, she's a really nice person, but trying to hurt someone she cares about ... may be the last thing you ever do.
* HeroicSacrifice: Both the characters ''and'' the audience wept. You can be assured of that.
* HospitalHottie
* TheMedic
* MajorlyAwesome
* MamaBear: It's not a good idea to piss off someone who knows as much about pain as a doctor, especially one that knows how to use a gun.
** At one point, She takes Nirrti hostage and demands that she fix Cassandra. Nirrti was still unwilling to help at first, even with the gun to her head. Then Hammond informed her that Frasier was Cassandra's mother. Nirrti got a lot more cooperative after that.
* SenselessSacrifice: How many viewed her death, especially some rat-faced politicians.
** She did save the man she was treating, it was simply viewed as not worth it.
* TeamMom

!Chief Master Sergeant Walter Harriman (Gary Jones)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Walter_Harriman_6870.jpg]]
AKA Chevron Guy, sat at the computers and called out when the chevrons were locked. Didn't get fleshed out much until a few seasons in. Eventually became O'Neill's assistant when he took over for Hammond as General.

* AscendedExtra: Form season 8 onward.
* TheCameo: [[DemotedToExtra Demoted Back to Extra]] in ''Series/StargateUniverse'', where he makes brief appearances with O'Neill (and has gone bald on top).
* EngagingChevrons: [[invoked]] TropeNamer.
* LovableNerd
* HypercompetentSidekick
* IHaveManyNames: The show simply couldn't decide what his name was. The Stargate wiki went with "Norman Walter Davis Harriman".
* NiceGuy: Both on and off the clock.
* PluckyComicRelief: When he's on screen for more than a split second.
* SpiderSense: Always knows what O'Neill and Landry want before any announcement over the PA is made.
[[/folder]]

[[folder:Later Characters]]

As time went on, new regulars appeared, mostly to replace retired old characters.

!Jonas Quinn (Corin Nemec)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Jonas_Quinn_9520.jpg]]
An alien, with a name inexplicably sounding less alien than that of his actor. Replaced Daniel Jackson for season 6, then unceremoniously written out when Michael Shanks changed his mind. He was essentially the geek figure that Daniel ceased to be by that point, but in many ways was different from his predecessor, as his primary motivation was atonement for what he saw as his fault -- that is, Daniel's death. [[WhatHappenedToTheMouse His fate following the Ori conquest of his homeworld Langara is unknown.]]

* CunningLinguist
* HumanAlien
* OnlySaneMan: Compared to the other Langarans.
* PerpetualSmiler: And O'Neill just loves to lampshade it.
* PhotographicMemory: Apparently a trait of the Langarans.
* SuspiciouslySimilarSubstitute: Former {{Trope Namer|s}}.
* WeHardlyKnewYe
* WhatHappenedToTheMouse: After Series 7 we hear no word from him, leading some to speculate he died during the Ori invasion of Langara. Was a throwaway line on ''Universe'' when they actually show Langara again, too much to ask?

!Lieutenant Colonel Cameron "Shaft" Mitchell (Ben Browder)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Cameron_Mitchell_3056.jpg]]
Replaced O'Neill as the leader of SG-1 for Seasons 9-10, which received the FanNickname "Fargate" (or sometimes "Starscape") due to the fact that he and ClaudiaBlack were former ''Series/{{Farscape}}'' leads. He wasn't, however, a straight O'Neill clone; while still a wisecracking action guy, he didn't have his predecessor's tendency to disobey orders. Also notable in that his "leadership" of the team was at best just in theory; he was the rookie (even compared to Vala, who had more experience) and didn't actually outrank any of his team.

* BadassNormal: He doesn't have the Ancient Gene, he's not an alien {{Badass}}, he's just a normal earthling. He still kicks plenty of ass.
* BewareTheNiceOnes
* BigDamnHeroes: He led the fighter squadron that saved SG-1 in Season 7, and personally saved them at one point.
* ColonelBadass: Thanks to some training with the Sodan.
* DayInTheLimelight: A few.
* DeadpanSnarker: Let's be honest -- if you're going to fill O'Neill's shoes, the "skill" of deadpanning is a must.
* TheHero
* HeroWorshipper: Big fan of all the original SG-1 team members.
* HeroicSpirit: Got it in spades.
* ImprobableAge: He is the bare minimum age for his rank, requiring him to be promoted as soon as legally possible to reach it at his age.
* MyGreatestFailure: He once bombed a convoy, after asking for and receiving confirmation that it contained the target. ''Immediately'' after he released the bomb, he was told to hold his fire. The convoy was destroyed, and it turned out to be carrying refuges. He was considered blameless, but it haunted him for the rest of his life; and he almost resigned over it.
* NomDeGuerre: As an F-302 pilot, had the callsign "Shaft" (short for "camshaft", a mechanical part that shares part of his name).
* PuttingTheBandBackTogether: Invoked.
* SouthernFriedPrivate: Technically, he's from Kansas, but his family moved from Tennessee and still made trips there to visit his grandma. Also, he has a slight Southern accent.
* SuspiciouslySimilarSubstitute: For O'Neill.
** Actually averted. The writers knew they could never replace O'Neill, so they made a concerted effort to make him a unique character.
* YouAreInCommandNow: And a few must have been field promotions as well as right on time.

!Major General Hank Landry (Beau Bridges)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Hank_Landry_9693.JPG]]
Replaced O'Neill in Season 9 as the commander of the SGC, but was actually closer to Hammond in both appearance and command style.

* AndStarring: Beau Bridges was prefixed with "With" in the opening.
* BenevolentBoss: Though not as much as Hammond.
* {{Cloudcuckoolander}}: He's got this "thing" about birdwatching.
* DaChief
* DrillSergeantNasty: Once in a while.
* SuspiciouslySimilarSubstitute: For Hammond; notice a pattern here?

!Dr. Carolyn Lam (Lexa Doig)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Carolyn_Lam_5166.JPG]]
The SGC's new medical doctor, after a season without a recurring character in this role following Fraiser's death back in season 7. General Landry's daughter, played by Michael Shanks's wife (which was a total surprise for him when she was cast).

* JerkassFacade: Used the façade to try and push General Landry, [[spoiler:her dad,]] at arms length. She was pretty good at it for a while, which led to a lot of {{wangst}} on her part.
* SuspiciouslySimilarSubstitute: For Fraiser.
* RealLifeRelative: Wife of Michael Shanks, who plays Daniel.

!Vala Mal Doran (ClaudiaBlack)
[[quoteright:238:http://static.tvtropes.org/pmwiki/pub/images/Vala_Mal_Doran_4837.jpg]]
TheChick. A genuinely new addition to SG-1 rather than a replacement, although she only officially joined the team in season 10, when SG-1 received a fifth member for the first time in its history.

* BelligerentSexualTension: Unusually it's a woman who is a JerkWithAHeartOfGold chasing a prickly man.
* ChainedHeat
* TheChick: Still a {{badass}} when required.
* ConMan: Well, woman.
* FunPersonified: She's like this a lot... [[spoiler:to hide her angst]].
* GenkiGirl
* GirlishPigtails: She even sported them in her [[WizardOfOz Dorothy]] look!
* GroinAttack: One of her specialties.
* MeetCute
* {{Greed}}
* MsFanservice: Although there's not a lot of it about in this series, Vala clearly qualifies via some of her outfits.
* NoodleIncident: Her entire backstory seems to be one long NoodleIncident.
* PirateGirl
* SixthRanger
* VaporWear: She appears not to have been wearing anything under a Kull Warrior suit in her first appearance.
* WrittenInInfirmity: Vala's pregnancy was due to Claudia Black's own.
[[/folder]]

[[folder:Allies of the SGC]]

!Bra'tac (Tony Amendola)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Bratac_5493.JPG]]
Teal'c's former teacher and his predecessor as Apophis's First Prime. Has a habit of not dying.

* BadassGrandpa: How else do you stand at the top of a warrior culture ruled by treacherous and fickle gods, well past the age of two hundred? The son of a bitch ''will not die''.
* CoolOldGuy: Provides the picture, and for good reason.
* DeathGlare: Excellent at this, for almost any occasion. Ties in with LivingLieDetector below.
* LivingLieDetector
* MookFaceTurn: Actually, it's later revealed that he was working against Apophis long before the events of the series, and planting seeds of doubt in Teal'c from the get-go.
* ObstacleExposition
* OldMaster: Fittingly enough, Teal'c addresses him as "Master Bra'tac."
** And so does almost everyone else. When Kinsey casually calls him "Mister Bra'tac," O'Neill's quick to correct him: "It's ''Master'' Bra'tac."
* ReallySevenHundredYearsOld: He's 133 when we first meet him.
* RunningGag: Addressing Hammond as "Hammond of Texas"; this even continued when O'Neill replaced him as the SGC commander, with Bra'tac addressing him as "O'Neill of Minnesota." Though he seems aware the latter does not have the same ring.
* ScarilyCompetentTracker
* YourEyesCanDeceiveYou

!Thor (voiced by Michael Shanks)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Thor_-_Stargate_SG-1_6896.jpg]]
One of the Asgard, a highly advanced species of TheGreys, who posed as a god to Norse-inspired human diaspora cultures.

!!!First, applying to the entire Asgard race:

* AlienNonInterferenceClause: The Protected Planets Treaty.
* AnonymousBenefactor: The Asgard usually let their work speak for itself.
* BittersweetEnding
* CloningBlues
* DeusExitMachina
* DittoAliens
* TheGreys: Roswell Greys to be exact.
* SpaceElves: The Asgard are a mix of types II and III.
* TalkingToHimself: Michael Shanks voices several Asgard, including Thor, so whenever one of them and Daniel Jackson are talking to one another, it's an example of this.

!!!And specifically to Thor:

* AccidentalHug: Carter gave him one once, [[NotSoAboveItAll he didn't mind though]].
* BigGood: Thor is a hero in just about every sense of the word.
* InterspeciesFriendship: With all of SG-1 and Hammond. Mostly O'Neill, cause they're best buds. The guy even offered to take Thor fishing ''for crying out loud!''
* TheManBehindTheCurtain
* StraightMan
* TheStoic: For a cute little Roswell Grey, he's very stoic.

!Jacob Carter/Selmak (Carmen Argenziano)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Jacob_Carter_670.JPG]]
Jacob Carter was Samantha Carter's father. When he was dying of cancer, SG-1 brought him to the Tok'ra (rebels opposing the System Lords while being the same species as the Goa'uld) to be blended with the symbiote Selmak. This cemented the alliance between the Tok'ra and the Tau'ri, although Selmak himself eventually grew out of favor among his people due to his ties to Earth. [[spoiler:Was killed off anticlimactically in the episode "Threads", for seemingly no reason other than to give his daughter something to angst over for all of one episode.]]

* AmazinglyEmbarrassingParent: Not often, but it happens.
--> '''Sam''': Welcome to ''my'' life.
* [[BeamMeUpScotty Beam them out? What am I, Scotty?]]
* GrumpyBear
* DroppedABridgeOnHim: [[spoiler:Killed of in season 8's episode "Threads".]]
* GrumpyOldMan: Jacob isn't all that old but he sure can be grumpy sometimes.
* JerkWithAHeartOfGold: He came across as a real jerk when he first showed up. He grew out of it pretty quickly though, for the most part.

!!!Applying to the Tok'ra in general:

* MySpeciesDothProtestTooMuch
* SharingABody: It's interesting to note that the echoing symbiote voice, which the Goa'uld use to induce fear, the Tok'ra use to differentiate between the host and the symbiote.

!Skaara (Alexis Cruz)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Skaara_6759.jpg]]
Daniel Jackson's Abydonian brother-in-law, and one of two movie characters who retained their original actors. He was kidnapped from Abydos by Apophis for use as a host for his son Klorel. Much later, after he was captured by the Tollans, O'Neill and Daniel successfully argued in Tollan court for the removal of Klorel. [[spoiler:He was mortally wounded by Anubis's troops during the attack on Abydos, but Oma Desala helped him and the other Abydonians AscendToAHigherPlaneOfExistence.]]

* [[spoiler: AscendToAHigherPlaneOfExistence]]
* AndIMustScream: Possibly like all the people who've ever been possessed by a Goa'uld.
* BreakTheCutie
* FightingFromTheInside: Has enough HeroicWillpower to delay Klorel's actions, though it's not enough to stop him entirely.
* GoOutWithASmile
* HeroWorshipper: Towards O'Neill.
* MyGodWhatHaveIDone: Feels like this for actions that were actually done by [[PuppeteerParasite Klorel]].
* NiceGuy
* TheOtherDarrin: Notably averted in that he's one of only two characters to be played by the same actor in the movie and on SG-1.
* WideEyedIdealist
* WildHair
* [[WhenSheSmiles When He Smiles]]

[[/folder]]

[[folder:Villains]]

!Goa'uld

!!Ra (Jaye Davidson)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Ra_-_Stargate_8618.JPG]]
The villain of the original ''Stargate'' movie, an ancient alien who enslaved primative mankind, founded ancient Egypt and thus regards himself as the creator of human civilization. Maintained power by using his SufficientlyAdvancedAlien technology to pose as a god, and was the source of the mythology of the Egyptian god Ra. Was ret-conned in the TV series as being the most powerful of the Goa'uld, an entire species of parasitic aliens who pretty much followed the same modus operandi.

* BigBad: Of ''Film/{{Stargate}}''.
* DeathByOriginStory: Only relevant to the TV series via his death in the movie.
* TheEmperor: Was Supreme System Lord before his death, the most powerful Goa'uld System Lord.
* OlderThanTheyLook: An ancient alien entity possessing the body of an Egyptian teenager.

!!Apophis (Peter Williams)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Apophis_-_Stargate_SG-1_2773.jpg]]
The original BigBad of the TV series. The brother of Ra, Apophis attacked Earth and later Abydos, in the process kidnapping Daniel Jackson's wife Sha're, causing the Stargate program to be reformed to combat the new threat of the Goa'uld. He was actually only one of many competing Goa'uld System Lords, and over the course of the series he rose and fell in power due to SG-1's actions. After [[NotQuiteDead several apparent returns from the dead]], he was finally [[DeadForReal Killed For Real]] by the EvilerThanThou Replicators.

* ArchEnemy: To SG-1, and has reasons to hate all them individually.
* BigBad: For the first and fourth seasons. The loss of his ships made him too weak to be the BigBad for Season 2. He was in fact defeated and tortured by Sokar midway through Season 2; and Sokar would go on to be the BigBad for Season 3.
* NotQuiteDead: Escaped what seemed like certain death so many times, that even after he was finally slammed into a planet at superluminal speeds, Jack O'Neill was "100 percent certain ... 99 percent certain that Apophis is dead."
* MarsNeedsWomen: Captured Sha're to serve as a host for his queen Amonet.
* RoyalsWhoActuallyDoSomething: Unlike most of the other System Lords, Apophis wasn't afraid to lead from the front, and was willing to fight alongside his Jaffa on a few occasions. His original outfit was a more decorated version of Jaffa combat armor, in contrast to the dress robes worn by most other Goa'uld.

!!Anubis (David Palffy)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Anubis_-_Stargate_SG-1_7036.jpg]]
Replaced Apophis as the series' main BigBad. Initially introduced as a mysterious new Goa'uld who launched attacks against all major galactic power-players (including the other Goa'uld and also the Earth), and was able to gain power rapidly due to possessing technology significantly more advanced than anyone else's, eventually becoming the most powerful power bloc in the galaxy. He was eventually revealed to be an evil [[EnergyBeings energy being]], having Ascended and gained scientific knowledge on par with that of the [[NeglectfulPrecursors Ancients]]. He was smarter, eviler and more GenreSavvy than the series other Goa'uld villains, yet at the same time was also significantly more melodramatic, drawing comparisons to Darth Vader and Emperor Palpatine [[LampshadeHanging even amongst the show's own characters]]. He differs from other Goa'ulds in that he doesn't simply want to be the supreme ruler of the universe. His goal is to annihilate ''every life'' in the galaxy.

He was opposed by an alliance of all other galactic power blocs (including the Earth and the Goa'uld), and ultimately was defeated in a massive finale that also saw the destruction of both the Replicators and the System Lords, thus ending the original ''Stargate SG-1'' series (making way for the PostScriptSeason involving the Ori plot arc).

* AGodAmI: As per Goa'uld tradition. Interestingly, he actually admits that defeating Daniel in the Season 6 finale was not his doing.
* AscendToAHigherPlaneOfExistence: He managed to ascend, then was chucked halfway back down to the lower planes.
* BigBad: For Seasons 6-8.
** He was also the unseen/unknown BigBad for Season 5
* {{Bodysurf}}: After his initial "body" was destroyed, he instead manifested by possessing human hosts, hopping to a new host when his energy caused the current one to start melting into goo.
* CardCarryingVillain: It's implied that he is very much aware of how evil he himself is. He was so bad that in the past, ''[[EvenEvilHasStandards the rest of the Goa'uld booted him from the System Lords!]]'' They deemed his actions ''unspeakable.''
* EvilerThanThou: Was opposed, at one time or another, by pretty much every remaining major villain on the show, sometimes in conjunction with SG-1.
* {{Expy}}: Of [[StarWars Emperor Palpatine]].
* TheFaceless: Sported the classic BlackCloak look, due to really being disembodied energy occupying a man-shaped forcefield body.
* GenreSavvy: Despite being even more melodramatic and hammy than most Goa'uld, he is actually a good deal less arrogant, and manages to avoid falling into the kinds of pitfalls that doomed dozens of System Lords. Notably, he accepted input from his subordinates and never underestimated SG-1 or the humans of Earth. After all, he showed up above a planet with a single ship (''Prometheus'') equivalent to, at most, one and a half standard Goa'uld motherships with the largest fleet ever assembled by a Goa'uld. He lost, but that had nothing to do with preparations for or actions during the battle. What arrogance he does display is warranted, given that he does possess technology far superior to that of most Goa'uld.
* ForTheEvulz: Most notably when he destroys Abydos just because he can.
* HeroKiller: He devastated the Tok'ra, wiped out the Tollan, and destroyed Abydos. He also destroyed the Alpha Site, which lead to the fracturing of the Earth, Tok'ra, and Jaffa alliance; and one of his men killed Dr. Fraiser.
* LargeHam Even by Goa'uld standards.
--->'''Anubis:''' I am Anubis. Humans of the Tau'ri. Your End Of Days finally approaches. There will be no mercy!\\
'''Jack O'Neill:'''Aw c'mon. Who talks like that?
--->'''Rodney [=McKay=]:''' Ya, Anubis? This your agent. You're playing it ''way'' over-the-top! You need to get serious!
* TheMole: In the form of Jim.
* NearVillainVictory: He was ''seconds'' away from wiping out all life in the galaxy.
* OmnicidalManiac
* [[spoiler: SealedEvilInADuel]]
* TouchedByVorlons

!!Ba'al (Cliff Simon)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Baal_-_Stargate_SG-1_7571.JPG]]
A Goa'uld System Lord introduced about halfway through the series' total run. Although he never became the BigBad, he was a consistent secondary villain, often opposing both SG-1 as well as the series' current BigBad, making him something of the series' [[TheStarscream Starscream]]. Like Starscream in ''TransformersAnimated'', he even created a small army of clones of himself in order to cheat death and be in several places at once.

Although power-hungry, Ba'al was somewhat subtler and more reasonable than the standard "megalomaniacally melodramatic" Goa'uld villains. He also seemed to have a better understanding of human nature than was typical of the Goa'uld, including having an ironic sense of humor, and eventually even speaking in a normal voice instead of the Goa'uld's Scary Echo Speak.

* AscendedExtra: Was introduced amidst a bevy of System Lords in ''Summit''. He was such a great character that they brought him back as a recurring character.
* AGodAmI: ''Averted''. After the fall of the System Lords, he freely admits that he, and all the other Goa'uld, are not Gods; and notes that only the especially crazy Goa'uld end up believing themselves to be a God.
* AffablyEvil: Ba'al often tries to pull this in the later seasons, but it ultimately never works due to his Goa'uld nastiness as well as his enemies' [[GenreSavvy genre savviness]].
* ArchEnemy: O'Neill hates him more than any other Goa'uld, though he's subtle about it. Ba'al seems to despise O'Neill in turn.
* BrickJoke: A rather dark ContinuityNod. In "Abyss," he repeatedly tortures O'Neill to death, often using knives. Fast-forward to "The Quest", when he has to relinquish a posession, they tell him to drop in his knife, which he at first refuses, claming it has... "sentimental value."
* CivilianVillain: Briefly set up shop as an Earth businessman after the Replicators ate all the other System Lords.
* DangerouslyGenreSavvy: Especially in ''StargateContinuum''. It's a PeggySue plot with him using all his knowledge and GenreSavvy. If he won, it's indicated the universe would have actually been pretty nice, albeit under the heel of a god-king.
* DeathIsCheap: After he became a series of clones rather than an individual character, it kind of became a running joke to have him killed repeatedly (often within the same episode), only to have him be back for more a few episodes later.
* GoingNative: In Season 9, he spends some time hiding on Earth and afterwards started to incorporate into his schemes ideas he got from past missions of the SGC. He also started using the human voice and, in ''StargateContinuum'', he called the president with a cell phone to discuss a "peaceful" solution. (The other Goa'ulds thought he went insane because he didn't use the traditional "blast them back to the Stone Age" solution.)
** He also starts to dress in Earth fashions by the end of the series, and even implies in ''Continuum'' that the reason he never bothered to invade Earth was simply because he's become rather fond of it, recognising that Earth is far more valuable an asset if it remains as it is.
* InsufferableGenius or KnowNothingKnowItAll: Depending on the episode.
* KarmaHoudini: For most of the series.
* PowerParasite: Attempted to control [[PhysicalGod Adria]], [[spoiler: and briefly succeeded until the intervention of SG-1.]]
* PragmaticVillainy: Ba'al wants to win, but win long term. ''StargateContinuum'' shows that ultimately we would've loved him as our ruler, and he would've kept Earth safe, being probably a safer and better world if he won, except for the whole GodKing thing...
** He also, unlike most Goa'uld, actually seems to understand that the "AGodAmI" act ''is'' just an act, propaganda to intimidate the ignorant into obedience. As a result, he doesn't allow indignant outrage at the notion of mere humans daring to oppose him get in the way of carrying out his plans.
* SendInTheClones
* TheStarscream: Ironically, managed to outlast all the actual [[BigBad Big Bads]], becoming the series' longest running villain.
* TortureTechnician: Repeatedly tortured O'Neill to death.

![[GreyGoo Replicators]]

!!Replicator Carter (Amanda Tapping)
A human-form Replicator created by Fifth in the image of Sam Carter, trained to kill the original. She also grew to hate Fifth and tricked SG-1 into helping her destroy him, then turned on them and became the Season 8 BigBad.

* ActingForTwo: Whenever she and Sam appear at the same time.
* BigBad: Of Season 8.
* BladeBelowTheShoulder: Her preferred method of killing is turning her arm into a sword and stabbing people with it.
* DragonAscendant: Conspires with SG-1 to [[spoiler: destroy Fifth]], and then leads the rest of Replicators into a full invasion of the galaxy.
* FanNickname: [=RepliCarter=]
* RobotMe

!!Fifth (Patrick Currie)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Fifth_8836.JPG]]
The fifth human-form Replicator to be created, he featured a quality that his fellow human-form Replicators lacked: a good heart. O'Neill took advantage of this, tricking him into helping SG-1 escape and [[SealedEvilInACan leaving him and the others trapped]] by a TimeDilation device. Reappears in Season 8 seeking revenge.

* HoistByHisOwnPetard: [[spoiler: Creates Replicator Carter as his companion, only to be destroyed by her.]]
* TinMan
* WhatTheHellHero: Does not react well to SG-1's betrayal.

![[ScaryDogmaticAliens Ori]]

!!The Doci (Julian Sands)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Doci_3740.JPG]]
The leader of the Priors, the Ori's "clerics"/priests. The Ori can also possess the Doci to speak directly to humans. Like the Priors, the Doci worships the Ori out of a genuine sense of religious devotion and is unaware of their true nature.

* EvilAlbino: His bizarre coloring is a byproduct of [[TouchedByVorlons Ori empowerment]].
* KnightsTemplar
* MyGodWhatHaveIDone: In ''TheArkOfTruth''.
* PathOfInspiration
* TouchedByVorlons

!!Adria (Morena Baccarin)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Adria_813.jpg]]
Adria was "conceived" by the Ori, and is the "virgin birth" daughter of Vala Mal Doran ("virgin birth" in quotes since Vala was hardly a virgin, if you get my drift). A human possessing the vast cosmic powers of the Ori, she was created as a sort of [[DarkMessiah Ori Messiah]] to lead the conquest of the Milky Way Galaxy. Being effectively an Ori in a human body, Adria ''is'' fully aware of their true nature. Although she has a sentimental attachment to her mother, she's otherwise quite evil and sadistic, just like her Ori progenitors.

Since the Ori themselves are a concept rather than actual characters, Adria mostly serves as the final BigBad of ''Stargate SG-1''. After the Ori are destroyed by Daniel Jackson, Adria absorbs their combined power (or more precisely, since the Ori draw their power from worshipers and she's the only Ori left, she gets everything that used to be shared among the group) and attempts to [[TakeOverTheWorld take over the universe]] (she fails, of course).

* AGodAmI: Like the Goa'uld, Adria actually ''believed'' herself to be a god, although perhaps more justifiably.
* BigBad: For Season 10.
* CrystalDragonJesus: See below.
* DarkMessiah
* TheOtherDarrin: Played by four different actresses due to the fact that she was growing from toddler to adult the whole time.
* [[spoiler:SealedEvilInADuel]]: [[spoiler:How she was finally got rid of in the ''Ark of Truth'' movie.]]
* {{Tykebomb}}: Pretty much created expressly for the purpose of taking over the Milky Way.
* WhatCouldHaveBeen: Apparently, there were plans to make her more long-lasting, including having her fuse with a Goa'uld symbiote. However, plans fell through after Sci-Fi ended the series, and instead had her do a re-hash of Anubis's final plot.
** The Goa'uld symbiote part actually happened in abbreviated form, resulting in Adria having to AscendToAHigherPlaneOfExistence after a failed extraction attempt killed the symbiote but left her dying.
* WhatDoYouMeanItsNotSymbolic: See above.
* YoungerThanTheyLook: Actually only about a year old, grown to adulthood over the course of a few months via accelerated aging.

!Human

!!Colonel Frank Simmons (John De Lancie)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Frank_Simmons_4977.jpg]]
A US Air Force colonel affiliated with the rogue NID operation. He repeatedly interfered with SGC operations, including stealing a Goa'uld-infested gazillionaire out from under them. He was finally arrested and convicted of treason, but that wasn't the end of it.

* BigBad: For the fifth season, at least until Anubis showed up.
* {{Jerkass}}
* JerkWithAHeartOfJerk
* [[spoiler:ThrownOutTheAirlock]]: [[spoiler:After the Goa'uld infesting Adrian Conrad jumped hosts to him in "Prometheus", he tried to kill O'Neill, who spaced him.]]

!!Senator Robert Kinsey (Ronnie Cox)
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Robert_Kinsey_9371.jpg]]
A US senator who initially learned of the SGC by demanding to know what black project the Air Force was dumping millions of dollars into out in Colorado. He continually tried to have the command shut down and/or transferred to his control, and collaborated with the rogue NID frequently. In season 7 he was elected vice president, then promptly fired when President Hayes lost patience with him in "Lost City".

* [[CorruptCorporateExecutive Corrupt Politician]]
* {{Jerkass}}
* KnightTemplar: He explained this himself very well, using it to justify the very hypocrisy O'Neill had just called him out on:
--> "The only currency in [[UsefulNotes/WashingtonDC this town]] ''is'' power. So if I have to [[DealWithTheDevil shake hands with the Devil]] to do the Lord's work, then so be it."
* LaserGuidedKarma: Every crime that he did eventually came back to haunt him when Anubis came to Earth, cumulating in the President, after having read incriminating evidence against Kinsey, decided to force Kinsey into "early retirement" from being the Vice President, and also implies that if he didn't, he would have done far worse to him as he "had enough evidence as to have [Kinsey] shot." [[spoiler:He was even taken as a Goa'uld host, after all those years of saying the snakes were no real threat to earth.]]
* ObstructiveBureaucrat
* WhatHappenedToTheMouse: He's pretty much the only major villain whose ultimate fate was never definitively resolved. The last we see of him, he gets possessed by a Goa'uld, who then kills his Goa'uld boss and makes a VillainExitStageLeft using a handy nearby shuttlecraft.

!!Harry Maybourne (Tom [=McBeath=])
[[quoteright:250:http://static.tvtropes.org/pmwiki/pub/images/Harry_Maybourne_8338.jpg]]
The initial ringleader of the rogue NID operation. Eventually SG-1 finds evidence incriminating him for treason; he defects to the Russians and helps them set up their own abortive stargate program. SG-1 captures him, then breaks him back out when they need help against the NID; he goes on the lam. After helping out the SGC repeatedly against its earthly enemies, they eventually move him off-world for his own protection.

* HeelFaceTurn: After becoming a wanted man, he helps out O'Neill and is eventually smuggled off-world by the SGC.
* HiddenDepths: After manipulating his way to the top of a primitive culture, he discovered he was actually a pretty capable ruler.
* KnightTemplar: At first.
* LoveableRogue: [[spoiler: Became this after making his full Heel Face Turn in Season 4's Chain Reaction.]]
* PerpetualTourist: For a while, after his treason conviction.
* VitriolicBestBuds: After a ''long'' period of antagonism, his later episodes with O'Neill began to veer towards this.
** Well ... Jack seems to no longer harbour an uncontrollable urge to shoot him. At least not often.

!!The Trust
The shadowy group of businessmen pulling the strings of the rogue NID operation. They grew rich(er) off of patents derived from reverse-engineered alien technology, and launched their own wildcat operations against enemies and allies alike with little regard for how it affected our legitimate efforts.

* CorruptCorporateExecutive
* DoesThisRemindYouOfAnything: The Trust seems to be an oblique reference to the military-industrial complex.
* EvilVersusEvil: Besides having their own misguided way to fight the Goa'uld, at one point they tried to assassinate Senator Kinsey.
* TheManBehindTheMan: To the rogue NID agents.
* WellIntentionedExtremist: Though the Trust was motivated mainly by {{greed}}, they also genuinely thought the SGC wasn't living up to its mandate to advance Earth's interests in the galactic arena. Unfortunately their approach had a way of pissing off Earth's allies: instead of trying to trade or borrow tech (and frequently butting up against politics and {{alien non-interference clause}}s), their operatives simply stole the tech and damn the consequences for Earth. In season 3 this nearly resulted in the Tollans, Tok'ra, and Asgard breaking off diplomatic relations. In season 8 they branched out into [[spoiler:''stealing the freaking stargate'' and using it to launch chemical attacks indiscriminately against ostensibly Goa'uld worlds. Since they didn't exactly check beforehand to see who was ''actually'' in control there, this resulted in the deaths of thousands of rebel Jaffa and at least one Tok'ra.]]
[[/folder]]
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