!! '''Colonel Everett Young''' (Louis Ferreira)
Military commander of the Icarus base, now in command of ''Destiny''.

* AntiHero: Increasingly this since "Justice". Type III.
* AFatherToHisMen
** Which really hits him hard in "Aftermath" as [[spoiler: having to lose Riley to something he can't get angry over leaves him pretty torn up.]]
* {{Catchphrase}}: "Lotta work."
* ColonelBadass: After he recovers from his injuries sustained in the pilot.
* DysfunctionJunction: Young is trying to repair his marriage (redefining the term "long-distance relationship" in the process) while being stuck on ''Destiny'' with T.J., whom he had an affair with (and unknowingly knocked up).
* TheHero
* TheKirk
* OverprotectiveDad: Bonus points for the child not actually having been born yet.
* ParentalSubstitute: Acts as one to Scott.
** Scott even hallucinates that Young is indeed his father in "''Cloverdale''".
* PowerTrio: Either the Superego or a second Id in the Young/Rush/Camille trio. YMMV
** In the military one he's definitely the Superego.
* TeamDad: Even lamsphades this in the final episode.
* TraumaCongaLine: Let's see: [[spoiler:his unborn kid is dead, he had to MercyKill someone under his command, and now Telford has been lost]]. You can hardly blame him for hitting the bottle again and again.
* YouAreWhatYouHate: Young and Rush tend to despise each other, giving a special color to their respective morally ambiguous actions.
* YourCheatingHeart: Cheated on his wife with TJ before the start of the story. She evidently caught him or he came clean. Telford uses this against him later, by claiming it's not over to Young's wife.


!! '''Dr. Nicholas Rush''' (Creator/RobertCarlyle)
Icarus' lead scientist, and the resident expert on Ancient technology. Also an InsufferableGenius who likes playing power games.

* AloofAlly
* AntiHero: Type IV.
* TheAtoner: Ever since the events of "Human", Rush seems to have been taken off of his high horse and has actually been trying to ''help'' the crew.
** For a few episodes anyway. Now he's back to being [[WildCard morally ambiguous]], making it AesopAmnesia. However, he can still be said to be trying to help, just trying to balance that with his own interests, which predictably isn't panning out as well as he'd like.
* BadAss: Kills one of the catfish aliens with his bare hands, rescues Chloe, and gets them both safely back to Destiny.
** In ''Subversion'', Kiva assumes he's military because she doesn't believe a civilian could withstand torture for that long.
* [[spoiler: BetterToDieThanBeKilled: His alternate self in "Time", who elects to run through an unstable wormhole, instead of letting himself be killed by the nocturnal creatures. It's implied it was either the transit or the virus they were suffering from that killed him instead.]]
* BreakTheHaughty: It's happening, slowly but surely. [[spoiler: And, as of ''Malice'', has kicked into overdrive]]
* ChewingTheScenery: '''THERE IS NO MORE POWER!'''. Somewhat justified given that he was under an incredible amount of stress trying to handle the ship's power issues effectively singlehanded, in withdrawal, hadn't slept for days, and was generally in the middle of a complete nervous breakdown.
* TheChessmaster: It's very rare for him ''not'' to be plotting ''something''.
* ConsummateLiar: He doesn't even skip a heartbeat to lie in normal conversation. And he's so good, he can even fool himself!
* DeadPersonConversation: In the second season, he speaks to his dead wife and Franklin, who may or may not have died. He claims that either the ship is creating holograms to help him or he's just gone crazy; his wife's flippant attitude toward the affair convinces him it's the latter.
** Rush makes this even scarier because he ''doesn't'' treat this as surprising. In fact, he eventually gets tired of his wife questioning all his decisions and asks to see Franklin, because he at least is helpful when he does it.
* ForScience: His main motivation, even if the means to pursue said science, might put people in jeopardy.
* FreudianExcuse: A lot of his behavior is motivated by his wife's death.
* [[spoiler: GoingDownWithTheShip: Future!Rush elects to stay behind on the alternate ''Destiny'', when it's about to be destroyed.]]
* [[spoiler: FutureMeScaresMe: In "Twin Destinies", his interaction with Future!Rush demonstrates that he doesn't even trust ''himself''.]]
* InsistentTerminology: He rarely refers to Chloe by her given name, instead referring to her as "Miss Armstrong". With everyone else onboard ''Destiny'', he either calls them by their [[FirstNameBasis first name]] or their [[LastNameBasis surname]].
** Presumably this AffectionateNickname derives due to Rush having been first introduced to her as Senator Armstrong's daughter. As the series progresses and she begins to forgive him for his role in her father's death, and after he begins mentoring her, he begins to refer to her as Chloe.
* InsufferableGenius
* {{Jerkass}}
* JerkassDissonance: A number of fans actually think Rush would be a better leader than Young due to his [[TheUnfettered lack of restrictions]] when acting for the greater good and the amount of NotSoDifferent between the two.
* JerkWithAHeartOfGold: In "Deliverance", he proves to be this, as he hands Chloe over the aliens so they can cure her, despite the fact that it'll be putting the ship in danger. As Camille points out, he's putting a single life before the mission, which contradicts what you'd expect from him.
* KickTheDog: Separating Destiny from the seed ship while [[spoiler:Telford]] was still on board and fixing the problem. Dick move, Rush.
* LeftForDead: "Dear diary, my friends left me on an empty planet all alone. FML."
* MorallyAmbiguousDoctorate
* MustHaveCaffeine / MustHaveNicotine: Was forced to quit both cold turkey, which in addition to being awake for several days and under constant stress, leads him to collapsing whilst suffering a complete nervous breakdown in "Darkness".
* MyGodWhatHaveIDone: His reaction in "Twin Destinies" upon [[spoiler: accidentally killing Telford]].
* NeverMyFault: Occasionally invokes this after his keeping secrets has made the situation ''worse''.
* PetTheDog: Despite himself becomes sort of a mentor to Eli. And has reached an ''understanding'' with Young. They may not like each other, but will hold off trying to harm the other. He is also surprisingly nice to Chloe - Even Camile was surprised that Rush seemingly put the ship at risk to save her.
** Episode 16, "Sabotage", very much.
** Then again in "Resurgence".
* PhraseCatcher: Drinking everytime you hear someone say "Whole lotta work" or "Dammit, Rush!" is not advised.
* PowerTrio: The Id
* ReliableTraitor
* RoaringRampageOfRevenge: "Malice"
* TokenEvilTeammate: While not really evil, Rush is [[TheUnfettered quite willing]] to sacrifice people for the greater good. Or what he considers the greater good anyway. Others might describe it as "his own convenience". He plays it much closer in the second season, where people keep getting harmed while he plays with his secret bridge.
** Lampshaded in the last episode when Young compares them all to a family, defining Rush's position as;
--> '''Young''': The, uh, [[MadScientist slightly crazy uncle]] who [[EnemyMine despite everything]], still [[ReliableTraitor manages to come through]] for you [[AloofAlly in the end]].
* TheSpock
* SurroundedByIdiots: Rush obviously feels this way at times. "Resurgence" is one of the best examples.
* TheUnfettered
* ViolentGlaswegian: At times, and usually subverted because Rush isn't a very good fighter. He does manage to get the "Glasgow Kiss" in at one point.
* WhatYouAreInTheDark: In "Divided", after waiting to the last possible minute to allow the transfer to complete on it's own, he cancels it and lets Eli restore the docking clamps on the Ancient Shuttle, saving Young and Scott from being vaporised when the ship jumps to FTL.
* WildCard

!! '''Eli Wallace''' (David Blue)
MIT dropout who solved the problem of dialing the ninth chevron (it was embedded in a video game), and [[AscendedFanboy Ascended Fanboy]] subsequently brought onboard. Now acts as TheSmartGuy and foil to Rush. Also in charge of the kinos. 25 years old.

* ApocalypticLog: Eli is keeping one using the Kinos. It comes in handy in "Time".
* AscendedFanboy: Eli played an online game loosely based on the {{vaporware}} ''VideoGame/StargateWorlds'' game (which in-universe was probably based off of ''Wormhole X-Treme!''). Plus, he's an avowed science fiction geek who makes constant references and shows the most genuine glee about being on a spaceship.
** PromotedFanboy: Eli's actor was already a fan of ''Stargate'' before joining the show. The producers call him an actor and technical adviser in one package.
* BigFun
* BreakTheCutie: His mother's condition is getting worse, his girlfriend was StuffedIntoTheFridge, one of his best friends / ex-LoveInterest is slowly turning into... something alien and he (as a civilian) has lost plenty of comrades / friends. Quite a TraumaCongaLine he has there.
* BrilliantButLazy: Before he ended up on ''Destiny''.
* TheEveryman
* ForWantOfANail: Relates to Ginn how his parents bought him a hamster to teach him responsibility, but he accidentally left the cage door open and his father stepped on the escaped hamster. Since then he's been unsure of himself and refused any kind of responsibility put on him. This lead him to drop out of MIT and spend all his time video-gaming, where he solved the Ancient code that stranded both the expedition, and later, the Lucian Alliance on ''Destiny''. Ginn points out that without that hamster, [[CrowningMomentOfHeartwarming they would have never met]].
* GenreSavvy: Comes from being a sci-fi geek.
* GoodWithNumbers: His nickname early on was "Math Boy". In fact, he is so good with numbers, he is the only person on the ship whose intellect Rush actually respects.
* HollywoodNerd
* JustFriends: With Chloe.
* IKnowMortalKombat: Eli learned Ancient from the game he was playing.
* NerdsAreSexy: Ginn thinks so, but then she's a nerd herself.
* RefusalOfTheCall: Eli is completely unconvinced when O'Neill and Dr. Rush show up on his doorstep, informing him that he is their ChosenOne. Unlike most examples, however, this doesn't end all that badly for him (well, other than the whole stranded on the other side of the universe thing, but that has nothing to do with him refusing the Call).
** He actually took to the call pretty well when he learned all the details. And was standing in a spaceship
* TheSmartGuy
* SupportingProtagonist
* TheWatson


!! '''Lieutenant Matthew Scott''' (Brian J. Smith)
Destiny's second-highest ranking officer. Usually leads away missions. Also in a relationship with Chloe. 27 years old.

* ImprobablePilotingSkills: Claims them with regards to the shuttles. Performs adequately in "Space".
* TheGenericGuy: He ''really'' doesn't have much of a personality.
* TheLancer
* TheMcCoy
* OrphansOrdeal: As revealed in "Air Part 3", Scott's parents were killed in a car crash when he was very young and the priest who raised him, basically drank himself to death when he was 16.
* ThePornomancer: Subverted. He seemed slated for this role ([[spoiler:and having a child he didn't know about certainly didn't help]]) but seems to have settled down with Chloe.
* PowerTrio: In the one running the military contingent he's the Ego

!! '''Chloe Armstrong''' (Elyse Levesque)
Senator's daughter, accompanied him on a review of the original station. In a relationship with Scott.

* CursedWithAwesome: Her transformation gave her super math skills, healing factor and antibiotic blood.
* DistressedDamsel
** DamselScrappy
* IJustWantToBeSpecial: She wants to be a part of Destiny's mission to give her fathers death a reason. So even though she's probably the last person that would be useful on the ship (alien knowledge later changes that), she tries her best and even volunteers to stay on the ship when the option to return home becomes available.
* JustFriends: With Eli although she considers that type of relationship as very important due to her realization that he's the first ''real'' friend she's ever had. So unlike the usual situation of the trope, she's aware of... you know... but she doesn't want to screw things up by getting involved with Eli.
** That last bit probably hinges on exactly when she figured out Eli's feelings for her, compared to when she hooked up with Scott.
* TheLoad: And she acknowledges this fact, which is part of the reason she [[spoiler:sides with Rush in "Divided"]]. Leads into the {{Wangst}} somewhat. She seems to be trying to rectify it by becoming this show's Daniel Jackson.
* MsFanservice
* TooDumbToLive: Aliens are cutting a hole into the ship to invade, so the first thing she did was to run to and stand right next to it like a deer in front of headlights, getting herself kidnapped.
* [[spoiler:ViralTransformation: She's slowly transforming into something, more than likely one of the aliens that kidnapped her.]]
** [[spoiler:This was cured later, but she retained some of her math skills.]]


!! '''Lieutenant Tamara "TJ" Johansen''' (Alaina Huffman)
An Air Force medic, and ''Destiny'''s ranking medical officer. Slated to leave the post just before it was attacked because of an affair she had with Young (with whose child she is pregnant).

* [[spoiler:IllGirl: The usual BeautyIsNeverTarnished bit is averted, the alternate future shows her slowly wasting away.]]
* TheMedic
* RealLifeWritesThePlot: Instead of [[HideYourPregnancy hiding Alaina Huffman's pregnancy]], they wrote it into the show.
* UnresolvedSexualTension: With Young and later Varro.

!! '''Master Sgt. Ronald Greer''' (Jamil Walker Smith)
Short-tempered Marine sergeant.

* AbusiveParents: His father was not such a nice guy, supposedly because of his involvement in the Gulf War.
* AngryBlackMan: Somewhat. To the people he sees as enemies, it's really apparent, but he's a decent guy otherwise.
* {{Badass}}: The guy rarely has to show it in action because noone dares to fuck with him in the first place. Examples include Simeon and Telford.
* BerserkButton: Making fun of his {{Claustrophobia}}, insinuating he has DaddyIssues and insulting [[UndyingLoyalty Colonel Young]].
* {{Claustrophobia}}: A mild case.
* DaddyIssues: Has a mild case of this, due to his veteran father becoming abusive after developing Gulf War Syndrome. In "Air Part 3", Rush unwittingly implies this is why he and [[OrphansOrdeal Scott]] are so insistent on "playing soldiers" to gain someone's approval, leading to Greer immediately kicking him on his ass.
* DeadpanSnarker
* DeathGlare: He's pretty good at this if you mention his {{Claustrophobia}}.
* HonorBeforeReason: While pretty reasonable otherwise, question the honor of his commanding officer or the value of his soldiers and their role aboard '''Destiny'', and he tends to get... perturbed.
* HoldTheLine: And does he ever in Cloverdale,[[spoiler:it involves using the gate as a weapon and a whole bunch of flamethrowers.]]
-->Rush: "This is an enemy you can't fight."\\
Greer: "Watch. Me."
* KillItWithFire: He even makes his own flamethrowers for the occasion, which says a lot.
* InTheBlood: It's what he is afraid of.
* OddFriendship: Greer is a stoic soldier with a deadpanned humor, Eli is an excitable Geek a little too uncertain in himself. Greer sincerely respects him and offers him advise regarding his love life.
** Made even more significant by the fact that Greer seems to dislike or at least distrust civilians in general.
* NoodleIncident: It has never been completely explained exactly what Telford did that provoked Greer into striking a superior officer. Young at least believes that Telford deserved it. Though from what we know of Greer, it must have ''really'' been something to make Greer develop such a long-lasting hatred for the guy. To put it in perspective, Greer has as of "Malice" only just begun to really outright dislike Rush (in his own words, he's not going to watch Rush's back any more).
* PowerTrio: In the military one he's ''definitely'' the Id.
* SergeantRock
* SexEqualsLove: Averted with him and [[spoiler: Dr Park.]]
** Or not. [[spoiler: Park]] seems to be very close to him (as of "Visitation").
* TokenMinority
* UndyingLoyalty: Surprisingly, he proves to be highly loyal to Young.
* WhyDidItHaveToBeSnakes: [[spoiler:He is [[{{Claustrophobia}} claustrophobic]].]]

!! '''Camille Wray''' (Ming-Na)
IOA representative on Icarus (and now ''Destiny''). Seems to have taken up the leadership of those who haven't sided with Rush or Young and otherwise representing a more humanitarian approach to things. As of "Awakening," she seems to have taken up tending to the hydroponics garden.

* TheChessmaster
** Or tries to be, unfortunately her opponents are Young and Rush.
* LastOfHisKind: Alternate!Wray was the longest surviving member of Alt!Destiny's crew on Novus.
* LipstickLesbian
* ObstructiveBureaucrat -> ReasonableAuthorityFigure
* [[OnlySaneMan Only Sane Woman]]: To a certain extent from the beginning but increasingly so as Young and Rush get progressively unhinged in the second season.
* PetTheDog: Can be viewed as abrasive, and openly hostile towards the military. Her relationship with Sharon shows a very loving woman. And her willingness to be trapped in a paralyzed body for weeks shows she has conviction. She also likes Eli, [[spoiler: letting his mother visit him aboard ''Destiny'']].
* PowerTrio: The Ego
* StraightGay
* TeamMom: Depending on your perspective. Though especially so for Eli given that his actual mom doesn't get to visit often.
* TwoferTokenMinority: As an Asian lesbian.

!! '''2nd Lieutenant Vanessa James''' (Julia Benson)
Another Air Force officer on ''Destiny''. As with Riley (see below), despite being military, she seems to be on pretty good terms with the civilians and scientists compared to the drama that occurs among the more prominent members of both sides.

* BoobsOfSteel: She's among the few female military personnel shown and the only to be shown in a combat role. Seems to be the second-in-line for command of away teams after Scott.
** When Riley piloted a kino into her room (he supposedly made a wrong turn), she tells him "I can, and ''will'', kick your ass."
* MadeOfIron: She takes a blast from an alien lightning storm (okay, so it was a few feet away but close enough to knock her back) and comes away none worse for wear. Maybe she's just immune to electricity.
* MsFanservice: Even more so than Chloe. She is normally the first example that fans bring up when accusing this series of deciding that DarkerAndEdgier means ''needs more half-naked women.''
** "[[MyEyesAreUpHere I'm up here]]." Said to, of course, [=McKay=], who was ogling her assets. Again.

!! '''Colonel David Telford''' (Lou Diamond Phillips)
Air Force officer who was assigned to Icarus, but got out on the ''Hammond'' instead of going through the Stargate to ''Destiny''. He seems to be Colonel Young's designated body-swap partner.

* [[spoiler:{{Brainwashed}}]]: Up until [[spoiler:he's brought to the edge of death to break it]].
* [[spoiler: ExpendableClone: Well, time-displaced duplicate from 12 hours in the future. For a brief moment, there are actually ''two'' Telfords, one on ''Destiny'' and one on Earth... until Rush accidentally kills the ''Destiny'' one during an argument.]]
* JerkAss: While YMMV on Rush or Young being the JerkAss, Telford is almost universally accepted as one.
** JerkWithAHeartOfGold: [[spoiler: Post-brainwashing]] he still has a habit of going on the occasional jerk streak, but he has the crew's best interests at heart and just wants to get everybody home.
* ManipulativeBastard
* [[spoiler:TheMole]]: Honestly, was anyone actually ''surprised'' by this?
** [[spoiler: But only until he's unbrainwashed. Then becomes the ReverseMole against the Alliance.]]
* TheNeidermeyer
* [[spoiler: PutOnABus: Well, on a ship at any rate.]]
** [[spoiler: TheBusCameBack: As of Resurgence.]]
* YourCheatingHeart: With Young's wife.

!! '''Dr. Lisa Park''' (Jennifer Spence)
One of the scientists (astrophysicist, to be precise) on ''Destiny''.
* [[spoiler: BlindedByTheLight]]: Literally and apparently permanently.
* DestructoNookie: In "Awakening", Greer reveals he pulled a hamstring during sex with her.
* HotScientist
* ObliviousToLove: Is seemingly unaware that Volker has genuine feelings for her.
* MoeMoe
* ReallyGetsAround: At the rate she's going, she'll be through most of the crew inside a month.
** Alternatively, the crew will be inside her through most of the month.

!! '''Lieutenant General Jack O'Neill''' (Richard Dean Anderson)
Runs the Department of Homeworld Security back on Earth.

* DeadpanSnarker
* OlderAndWiser
* TookALevelInBadass: Now he's the leader of Homeworld Security, he makes it clear he'll do ''[[GoodIsNotNice anything]]'' to protect Earth.
** Most fans forget that O'Neill spent most of the 80's performing ''Black Ops'' work.
* {{Transplant}}: From ''[[Series/StargateSG1 Stargate SG-1]]''.
* WhatTheHellHero: Gives one to Young for [[spoiler:his indecisiveness in dealing with the Lucian Alliance invasion.]]

!! '''Sgt. Hunter Riley''' (Haig Sutherland)
Essentially a combination of Siler and Walter from ''Series/StargateSG1''. He is usually seen supporting the staff at various points. He seems to be good friends with pretty much everyone on the ship; he, among the rest of the military, seems to be particularly competent with Ancient tech as he's identified the address to send them to Earth, helps with major repairs, mans the Stargate console on occasion, and can interpret Ancient. In one of the webisodes he even rigs one of ''Destiny's'' consoles to show a false self-destruct signal as a prank on Brody. [[spoiler:He died in the second episode of season two.]]

* EscalatingWar: The Kino videos show he has a long-running prank war with Brody. He once turned him ''purple!''
* HeroicSacrifice: Though he didn't actually die, he shoved Brody out a corridor with an overloading power conduit so Brody wouldn't get caught by the blast. He was also trying to fix it so the ship wouldn't blow up. Didn't quite get far enough to keep himself out of harm's way, but he saved the ship. It puts him out of action for the latter half of the first ten episodes. [[spoiler: He lampshades all of these incidents before his death; having survived an improbable number of incidents, he assumed it just it just wasn't his time yet.]]
* [[spoiler:KilledOffForReal]]
* MauveShirt: His purpose really. He's not quite as widely seen as, say, Brody and Volker, but every time he appears helps to paint him as practically the one guy on this ship who's taking the whole thing in stride. [[spoiler:That's why, [[AnyoneCanDie when they kill them]], it really hits home.]]
* [[spoiler:MercyKill: Young gives him one upon request. Not a quick kill, either. Young has to suffocate him because Riley isn't willing to take a bullet. Not because he's afraid to, mind you, but because he doesn't want the others to know that Young killed (or helped kill) him.]]
* SoundtrackDissonance: [[spoiler: Used to perfection when he dies. That is to say, there is no sound at all. Just complete and utter silence until Young finally lets out the breath he was holding. And it's that much more tear jerk-ing. It doesn't stop there. This episode doesn't even have the usual song ending the others do; instead we get Riley's video diary, which is almost as depressing as his death.]]

!! '''Airman Darren Becker''' (Jeffrey Bowyer-Chapman)
Runs the mess hall, more or less, and as a result is the go-to guy for meals and making alien food palatable.

* CampCook: But to be fair it's not his fault since he has to work with such low-grade crap. He actually does pretty good, all things considered.

!! '''Adam Brody''' (Peter Kelamis)
An engineer and computer expert. Friends and prank rival with Riley (he gets ''turned purple'' for his efforts). Also runs a still used to make alcohol in a makeshift bar for the crew. According to TheOtherWiki, Telford's gambit to dial Earth and thus getting Riley injured was why Brody sides with Rush against the military. [[spoiler: Which explains why a guy that probably isn't all that violent is willing to space Telford in "Subversion" - hurting Riley, blowing up Icarus, etc. There is the implication that Riley's death has hit him particularly hard out of the secondary characters due to their friendship.]] As of Season 2, he's also started to get a bit more of an active role in things as well as developing somewhat of an angry snarker personality (though for good reason).

* AscendedMeme: Has the [[spoiler:Numa Numa song]] on his iPod.
* BerserkButton: Hates that the crew have come to nickname the Control Interface as "The Applecore"... or "APLCR Unit"
* DeadpanSnarker: "Awakening" has him comment on some of the alien food they've been eating. "Tastes like crap." They then feed it to an alien, which spits it out. "Told ya."
* MilitaryMoonshiner: Despite not being military, he's filled this role.
* NeverLiveItDown: In-universe, no-one lets Brody forget his Novus counterpart named a nation "Futura"
--> "Its a ''font''!"
* ThoseTwoGuys: With Volker to Rush, though a fairly light version of the trope as they're pretty involved in the story as side characters go.

!! '''Doctor Caine''' (Tygh Runyan)
An I.T. tech who shows up near the end of the first half of the season, apparently just to remind us there are more than ten people on the ship. James tries to hook up with him but he turns her down, then he decides to stay on an alien planet because he thinks the people that built it (long story) have a better chance of getting the crew home.

* ChekhovsGunman: He started as a random guy sent on a mission because main characters had another thing to do. As the beginning of season 2 he became some kind of higher force's messenger. [[AllJustADream Or not]]. [[MindScrew Who knows]]?
* IsThisThingStillOn?: Has to remind James of this trope when she starts going on about how attractive he is over an open Kino line.
* PreacherMan: Becomes this in "Faith". Leading to...
* [[PutOnABus Put On A Planet]]: Willingly stayed behind on an alien planet with no Stargate and no way off, believing that advanced aliens (or God, which he pretty much admits to earlier) are trying to help them.
** [[spoiler: BusCrash]]: just before
** [[spoiler: CameBackWrong]], then
** [[spoiler: TheBusCameBack]] and he came
** [[spoiler: BackForTheDead]].
** TheBusCameBack: Assuming TJ didn't imagine it, which is hard to say one way or another, he shows up again in "Intervention".
* [[spoiler: RealityEnsues: Despite being part of a group of intelligent scientists, what happens when you leave a dozen individuals on a planet alone, with next-to-no supplies, who have only built settlements for ''summer'' and then a bad ''winter'' comes along? They all freaking ''die'', that's what!]]

!! '''Doctor Jeremy Franklin''' (Mark Burgess)
A scientist who, straight from the beginning, just has the worst luck.

* [[spoiler: BrainUploading: this is what the chair did to him. His body's disappearance is still a mistery.]]
* HeroicSacrifice[=/=]PutOnABus: He surely did the first in "Sabotage". The second is because we don't know exactly ''what'' happened to him. Possibly AscendedToAHigherPlaneOfExistence. It remains to be seen. He's still gone, though.
* IdiotBall: There's really no other excuse for him sitting in the chair which downloads a ridiculous amount of information into the user's brain, which is potentially fatal.
* SpiritAdvisor: Assuming Rush isn't just insane, which we ''really'' can't rule out, Franklin serves this role to him in "Aftermath".
** [[spoiler: He's later revealed to be an hallucination generated by ''Destiny'', the real Franklin having been uploaded into it's memory.]]
* WhatTheHellHero: His distrust of the military aboard ''Destiny'' is due to Greer ''shooting him'' during the pilot (although to save his life).
* TheWoobie: This man cannot catch a break. He gets shot in the pilot for heaven's sake, though admittedly he did bring it on himself. It gets worse from there.

!! '''Doctor Dale Volker''' (Patrick Gilmore)
Astrophysicist and one of Rush's core team of scientists.

* AscendedExtra: Originally intended to be a simple side character, the actor' portray impressed the showrunners enough to make him a more in-depth and involved character. Probably a CMOA for the actor considering how little most side characters have to work with.
* JustFriends: With Park.
* OnlySaneMan: At times. At the very least, he has a thread of common sense some of the other scientists seem to lack, though one may attribute this to being overly cautious.
* ThoseTwoGuys: With Brody to Rush, though a fairly light version of the trope as they're pretty involved in the story as side characters go.

!! '''Dr. Amanda Perry''' (Kathleen Munroe)
[[DisabledLoveInterest Quadriplegic]] [[HotScientist physicist]] on Earth; joins the crew via the communication stones in a number of episodes to work on the ship's drive. LoveInterest to Rush (whose nickname for her is "[[Literature/MrMen Little Miss Brilliant]]"). [[spoiler: NOT KilledOffForReal along with Ginn by Simeon. Since she was killed while connected to another body via the stones, her consciousness stuck in the ether, then linked to Chloe and was downloaded to Destiny. Yes, it's quite a MindScrew.]]

* [[spoiler:BrainUploading]]
* BrainyBrunette
* CantHaveSexEver: Due to her paralysis. Attempts to get round this with Rush while [[GrandTheftMe borrowing other people's bodies]] (first Wray's, later Ginn's), but fails, the first time due to Rush's still-raw grief over his wife's death, the second via MomentKiller. [[spoiler:She succeeded in having VR-sex with Rush in "Seizure".]]
* DisabledLoveInterest
* [[spoiler:GhostInTheMachine:]] [[spoiler:for two episodes, anyways.]]
* HotScientist
* {{Moe}}
* MoralityPet: For Rush.
* RomancingTheWidow: [[GenderFlip Gender-flipped]] example, with Rush.
* [[spoiler: NOT {{StuffedIntoTheFridge}}/{{KilledOffForReal}}]]
** [[spoiler: Or is it? WordOfGod has dropped a hint or two...]]
*** [[spoiler: BrainUploading solved it...]]

!! '''Varro''' (Mike Dopud)
The leader of what remains of the Lucian Alliance takeover force. His wife was killed during a rainstorm when the shelter she was in collapsed. He seems to have a thing for TJ.

* {{Badass}}
* PunchClockVillain: Win or lose, he just wants everyone to get along now that they're stuck together. While he is now free, he remained the only Lucian Alliance member alive due to a hunting accident.

!! '''Ginn''' (Julie [=McNiven=])
A scientist in the Lucian Alliance and one of the handful that were allowed to stay on board the ship. She was forced to join the Lucian Alliance or have her family killed.

* [[spoiler:BrainUploading: The same with Amanda Perry]]
* TheDogBitesBack: [[AxCrazy Dannic]] choked her for [[YouHaveOutlivedYourUsefulness being unable to fix Rush's sabotage]]. He got four bullets in the back from her when it became clear he was going to get everyone killed.
* [[spoiler:GhostInTheMachine: like Amanda Perry]]
* HeroesWantRedheads: Eli does at least.
* NerdsAreSexy: Hot redhead math genius and computer whiz.
* PunchClockVillain: Like Varro, she just wants to be helpful now that the incursion has ended. She's also quick to point out, she only joined the Lucian Alliance because they threatened to kill her family.
* [[spoiler:[[HeKnowsTooMuch She Knows Too Much]]]]: [[spoiler:Simeon killed her when she was going to reveal the details beyond the attack on Earth.]]
* [[spoiler:StuffedIntoTheFridge]]: [[spoiler:Simeon explicitly left Rush alive so her death (or rather that of who she was connected to) would haunt him.]]

!! '''Simeon''' (Robert Knepper)
A soldier in the Lucian Alliance and one of the handful that were allowed to stay on board the ship.

* BadAss: When he wanted to [[spoiler:silence Ginn]], he ended up killing three people ([[spoiler:including Ginn]]), wounded four others, escaped the ship, and evaded around a dozen people tracking him for the better part of a day.
* EnigmaticMinion: We don't see much of him, and he usually only speaks up to make quips. He interrogated Telford about how Kiva was shot and obviously didn't believe his story, yet made nothing of it. He also tried to get rough with TJ; [[ActionGirl he regretted it]].
* KilledMidSentence

!!'''Destiny'''
Yes, the ship. It actually has enough oddities that it must be considered a character.

* CoolShip
* MindScrew: ''Destiny'' can play around with [[spoiler:the crew's brainwaves. Confirmed hallucinations include Young's dreams]], while [[spoiler:TJ's baby and Rush's wife]] are possibilities, but unconfirmed yet.
** [[spoiler: Confirmed eventually. ''Destiny'' was trying to help TJ deal with the pain of losing her child and Rush's wife is one it's chosen forms when communicating with Rush on the bridge, along with the uploaded Franklin.]]
* RagnarokProofing: Considering it's held up for several million plus years, it's amazing that it's only now starting to break down.
* SapientShip
* SettingAsACharacter: ''Destiny'' is definitely a lot smarter than your average spaceship, Ancient or other. Rush has asserted that it doesn't actually have any personality, but apparently just freakishly appropriate deductive reasoning. One way of looking at it would be like your desktop computer with all the different programs on it (anti-virus, word processor, USB ports, etc) only more powerful and advanced. It has no real emotions or whatnot, but the complexity of it all can sometimes mean that when it tries to do something non-routine or something changes in its environment, something crashes (and usually when you're doing something important).
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