Adult Fear: A generous dose can be provided on occasion, particularly in the notorious 'O'Brien must suffer' episodes:
In 'Hard Time', the level-headed, down-to-earth Chief Engineer O'Brien is Mind Raped into experiencing a two-decade prison sentence in a matter of hours, leaving him with a severe case of PTSD that leads to his life gradually falling apart. Eventually, after a domestic dispute in which he almost hits his daughter, he walks into an empty cargo hold and places a fully-charged phaser to his head. His best friend Dr. Bashir talks him down, but it's a very close-run thing.
In 'The Assignment', O'Brien's wife Keiko gets a bad case of Demonic Possession from an ancient being called a Pah-Wraith. The Wraith demands he make certain modifications to the station, or it will kill Keiko via a massive stroke... and it's quite happy to cripple her if he starts looking disloyal. Perhaps the creepiest scene in the episode is when the Wraith calls O'Brien to remind him of his rapidly-approaching deadline, whilst combing their daughter's hair just roughly enough to make its point without raising undue suspicion.
At one point relatively early in the series, before the Dominion War Arc, when the Feds were trying to maintain peace with Cardassia, Gul Dukat makes a point of discretely boarding the station and entering Sisko's corridors, since as he points out, they used to be his. During his conversation with Sisko he makes an offhand reference to Jake. The rage on Sisko's face is seriously impressive, and immediately he comms Ops and has Odo track down Jake to make sure that he is alright. Dukat makes a big deal of being offended by Sisko's suspicion and demonstrates again that Cardassian military leaders are a little too prone to My Species Doth Protest Too Much. Sisko is most definitely not reassured that Dukat "would never do anything to harm (his) son."
Aesop Amnesia: In TNG, Worf and Alexander eventually came to the understanding that Alexander should not be forced to be a warrior and Worf could be proud of him anyway. During the Dominion War, Alexander shows up again, and he and his father show the same resentful, misunderstood attitudes towards each other as though they'd never learned that lesson. (With the added bonus of Soap Opera Rapid Aging Syndromenote It's never clearly stated that Klingons don't age more rapidly than humans, but if they did you'd think it would be explicitly stated at some point given how prominent they are.
A God Am I: Inverted by Weyoun in "Treachery, Faith, and the Great River." When Odo points out that the only reason the Vorta believe the Founders are gods is because they were genetically programmed to believe such, Weyoun says that of course that's true; after all, creating people to worship them is what gods do.
A Match Made In Hell: Things get very creepy (and a little bit squicky) in "Till Death Do Us Part" when Kai Wynn and Anjohl (AKA Dukat disguised as a Bajoran) hook up, with some help from the Pah Wraiths.
A Simple Plan: The B-plot of "Treachery, Faith, and the Great River."
Abandon Ship: Several times, notably in the series intro, which takes place during the Battle of Wolf 359 and features the USS Saratoga in flames as her passengers and crew get to the shuttles to escape. Commander Sisko is forced to leave his wife's body behind.
Similarly, the titular ship's crew in the episode Valiant abandon ship in the episode's climax, with the Dominion forces destroying many of the life pods (though it's not clear if this was intentional, or just because they were still pummeling the ship into its constituent subatomic particles; in a later episode the Female Founder told her soldiers specifically to let the life pods escape, so that the survivors would spread terror when they retold the story of their defeat.)
Ensign Nog: The Captain is dead, Chief. They're all Dead. The ship is lost. There's no need for us to die here too.
And a variation in the Season 5 finale, with the Starfleet personnel abandoning Deep Space Nine, but not because it's in danger of being destroyed, but rather because they can't hold it against the Dominion. The Bajoran militia destroy the station's computer systems as soon as the Starfleet personnel are clear.
The Defiant had to be abandoned a couple times as well, notably in "The Search, Part I" (in which Odo and Kira get to a shuttle while Sisko and Bashir get to a separate one off-camera (though it turns out they actually were captured and the Alpha Quadrant events of Part II are all taking place in a simulated reality); and also in "The Changing Face of Evil", after the Defiant is hit by the Breen's energy-dampening weapon (this time, the ship is actually destroyed).
Absence of Evidence: In "The Nagus", one of the things that tips Odo off that Zek is not dead is the absence of Mairhar'du at his funeral.
Abusive Parents: When Garak was a child, Tain would lock him in the closet for extended periods of time. As a result, the adult Garak is claustrophobic.
Dr. Mora used shock treatments on Odo when he was an infant. Odo resented Mora for years afterwards. There's also the matter of Mora and the other scientists naming the young Changeling Odo Ital (from odo'ital, "nothing" in Cardassian) even after they understood that Odo was sentient.
Some of this was resolved in the episode The Begotten, where Odo faces the same challenges in attempting to raise a changeling child and reluctantly realizes that Mora's techniques were less abusive than necessary. It's also interesting to note in this episode that Odo and Mora share a similar height, build, eye color, and exactly the same hair color and style. Odo clearly modeled his appearance on that of Dr. Mora.
Acting for Two: Kira and Miles & their Mirror Universe counterparts. Also Bashir in "Doctor Bashir, I Presume?" Jeffrey Combs, playing clones of the same character, gets to play a good and evil (ie. normal) version of Weyoun arguing over a com-link; he also played the character Brunt, and in the final three episodes appeared as both characters as well as a Holosuite guest in different scenes.
In "The Ship", O'Brien talks about the mountains in Ireland, but another character reminds him Ireland only has hills. Colm Meany starred in the film The Englishman who Went Up a Hill (But Came Down a Mountain) about a Welsh village that insists its hill is a mountain.
A Date with Rosie Palms: As we learned earlier in an episode of TNG, one of the erogenous zones on Ferengi is the ear, and the stroking of the ear is known as "oo-mox". Doing this to a Ferengi male gives them much the same sensation as stroking a certain other part on a human male does. Ear health is also a lot more important to Ferengi than humans, apparently, since Rom almost died because of a problem with his ear in "The Bar Association". When his attractive co-worker ( and eventual wife) Leeta blames Quark for it because Rom was worked too hard to get regular checkups to prevent things like that, the following conversation takes place.
Rom: It's not Quark's fault that I got sick. I forgot to get my bimonthly ear scan. And besides, I've probably been getting too much oo-mox.
Leeta: Really? Who's the lucky female?
Rom: [sheepishly] No female. Just me.
Leeta: [embarrassed] I'm...sorry...
Rom: [hopeful] Sorry enough to do something about it?
[Rom tilts his ear toward Leeta]
Also, it's indicated that some of the wealthier Ferengi have females (of any species) employed to give them oo-mox in public as a conspicuous display of their prestige, and one episode also has Rom's mother giving him oo-mox as an indication of healthy maternal affection. Oo-mox is a more quasi-sexual show of affection, something like kissing—which doesn't make the metaphor any less blatant, however.
Affably Evil: Weyoun and the other Vorta, all by design since they're genetically engineered to be liasons and middle-management.
Also, Gul Dukat, who cranks both aspects of this trope Up to Eleven in a great many episodes. Being affably evil seems to be a common trait of nearly all the Cardassians, but Dukat makes a veritable art of it, simultaneously demonstrating both his seductive charm and his loathsome cruelty to such a degree that one can understand why the Bajorans hated him so much, and yet also how he managed to have torrid adulterous affairs with several not-entirely-unwilling Bajoran mistresses both during the Occupation and in the series itself (producing half-breed illegitimate children with at least two of them of whom we know).
A Form You Are Comfortable With: The Prophets are apparently incorporeal, appearing in various guises taken from Sisko's memories. (Although they keep the same forms when dealing with Quark, who baffles them.) The 'hardliner' Prophets resemble people who are hostile to Sisko, like Dukat or Locutus. The more neutral ones look like members of DS9's crew. And the friendliest look like Sisko's dead wife, his son, and the Bolian who saved Sisko's life at the Battle of Wolf 359, respectively.
The Pai-Wraiths are fond of this, too.
The Founders can imitate any alien species perfectly, but they appear mostly as the same basic humanoid shape as Odo, since he cannot perfectly mimic a humanoid facial appearance. They presumably appear this way to the Alpha Quadrant because the only Founder they know is Odo, thus they chose to resemble him.
Founders that go undercover, however, are quite adept at mimicking features of humans (or whatever race they're impersonating). One Founder that had infiltrated Earth deliberately took the form of Miles O'Brien, whom Sisko knew was off-world, specifically to taunt Sisko on their superiority in such matters.
It's possibly deliberate—since Odo has always expressed an inability to mimic complex humanoid features, but has no such problem with small animals or complex objects—that this "default" form was somehow instinctive to him, or that the Founders even blocked him from looking too "normal," since part of the point of sending him and the others like him out was to learn about alien species by seeing how they would treat a "changeling."
Though one episode, where we meet an Odo that's about 200 years older, shows us that he eventually learns how to mimic human faces perfectly.
Alas, Poor Villain: Yes, Weyoun dies several times. But a few of his deaths are very poignant, and very much ARE this trope.
Alien Arts Are Appreciated: Averted in the case of Cardassian literature, which is hideously boring and repetitive by any human standard.
The Alleged Ship: The crude fighter Kira and Dax appropriate on one of the moons of Bajor, originally built by the resistance to use against the Cardassians. All manner of things are wrong with it, due to its age and kludgy design, but it ends up being surprisingly spaceworthy, despite Dax's concerns.
Kira: You Starfleet types are too dependent on gadgets and gizmos. You lose your natural instincts for survival.
Dax: My natural instincts for survival told me not to climb aboard this thing.
All Just a Dream: The Argrathi criminal justice system works this way. Instead of maintaining an expensive prison system, they implant memories of several years of incarceration directly into the minds of offenders over the course of a few hours, who then wake up to find that they haven't lost several years of their lives... but the experience of it felt completely real, and the traumatic memories stay with them... Miles thought it was a bit of a dick move for them to do that to him.
Almost Kiss: Odo and Lola in "His Way", before Odo decides he just can't do it, because he loves Major Kira and she's not her.
Always Chaotic Evil: The Jem'Hadar are genetically engineered to be nothing but loyal Dominion shock troops. The episode The Abandoned examines this with a Jem'Hadar foundling. Turns out his inherent nature really does define him: all he wants is to be a Jem'Hadar warrior, even when Odo tries to present other, less violent options.
Ambiguously Gay: Virtually every male Ferengi character has hinted at this. From Rom's ability to mimic female walking, to Brunt and Zek's tendency to hide in a "closet," to various male Ferengi's attraction to Quark when he cross-dressed.
Rule of Acquisition Number 113: Always have sex with the boss. And Ferengi women are supposed to stay at home... Granted, this rule only appeared in the non-canon Legends of the Ferengi book, but it was written by the executive producers of the show.
Canonically, there is a Ferengi book called Oo-mox for Fun and Profit. Oo-mox is a (partially) sexual act, and at the time only Ferengi males were legally allowed to earn profit. Although, knowing the Ferengi, it's entirely possible that the author of said book simply added "and Profit" as an extra advertising incentive- it would hardly be the first case of the Ferengi not presenting an entirely honest title of something.
Quark didn't merely cross-dress, but actually crossed genders to make sure a scheme succeeded. The fact that he was able to change and then change back againusing nothing more than some advanced surgery suggests the Ferengi have had reason to do something like this before. Maybe this easy trans-sexuality comes from being willing (and able) to do just about anything to close a deal, which on occasion might have included feminine sexual favors for the customer when there aren't any females available... yet.
Mirror Universe Kira. Gay doesn't seem adequate to describe her; nor does bisexual. She seems to consider every man, woman, and object to be a sexual plaything.
Nana Visitor indicated that she didn't really agree with the writers about her character's sexuality; the way she saw it, the only woman for whom Intendant Kira really had any attraction was her counterpart, because she loves herself... really,reallyloves herself. As for the men, they're all there to service her massive ego as well.
Mirror-Ezri and the Intendant seemed to be lovers, though, which would therefore disprove Visitor's theory.
And I Must Scream: While the audience never gets to see evidence of it, Word of God states that Dukat's ultimate fate is to be sealed in the Fire Caves with the Pah-Wraiths - forever.
Angrish: After Damar kills Ziyal, he tries to convince Dukat to leave with him. Dukat merely turns to him for a moment and lets out a snarling scream of rage that convinces Damar to back off fast.
Animal Stereotypes: The Cardassians and Jem'Hadar, both reptiles, are generally cold and vicious. The Bajorans are a much more subtle example. They're said to be evolved from tapirs and their culture places great value on dreams and visions. In Japanese Mythology, tapirs are strongly associated with dreams because they resemble the mythical dream-eating creature known as the Baku (which, incidentally was the name of a completely different race in Star Trek: Insurrection.)
Anti-Hero: Sisko, at times; Quark, very definitely. Kira when dealing with Cardassians. And Garak, of course. Gul Dukat occasionally tried to be when helping Sisko, but it never took.
Anyone Can Die: Jadzia. Vedek Bareil. Ziyal. Damar. Gowron. Winn. Kor. Weyoun, many times. Dukat, sort of. Even Sisko, sort of.
Although Damar, Winn, Dukat, and Weyoun's "true" death were in the finale. But still.
Ape Shall Never Kill Ape: The Founders' number-one rule is that "no Changeling has ever harmed another". When Odo has to kill one of his own, it takes the Founders a year to decide how to punish him because they don't know how to handle it. Such a thing has never happened before.
Apocalypse How: Between several extermination attempts by the Dominion against enemy races, to the Federation's own genocidal attempt on the Founders, to the orbital bombardment that would have stripped the Founder homeworld to its core, to the attempted destruction of the Bajor star, to the Pah-Wraiths desire to burn the universe, there's a fair bit of this going on.
Arbitrary Skepticism: Whenever a message is received from the Prophets, everybody treats them like any other religious icon, conveniently forgetting that they have been proved to exist and have the ability to see through time.
Odo lampshades this in the episode 'The Reckoning', pointing out that Bajoran prophecies have a way of coming true, even it is not in the way people expected (case in point, the episode 'Destiny' from the third season).
On the flip side, the Bajorans, particularly Kira, often talk about how they have "faith" and wonder how the humans live without it (humans in the Star Trek future generally not being very religious). However, when your "gods" live in a wormhole you can drive ships through, regularly send you accurate prophecies, and even destroy entire fleets of enemy ships to protect your planet, you're not really practicing faith - their deity is practically a scientific law, which calls into question the soundness of the logic underlying Kira's lectures on the subject.
The Prophets were never actually met in person until Sisko entered the wormhole; that's what makes him the Emissary. It's true that there were still the Orbs, but before the Prophets were empirically verified to exist, it certainly took faith to believe that an Orb experience is more than just the equivalent of psychedelic drugs.
Arc Welding: Once Worf joins the cast in Season 4, the Klingon Politics arc from TNG is carried over and, to some extent, merged with the Dominion arc.
The order changed but Jack in 'Statistical Probabilities" when talking about Bashir and how he was able to not have his genetic enhancements discovered until the year before Jack: "There are rules, don't talk with your mouth full, don't open an airlock when somebody is inside it, and don't lie about your genetic status!"
Art Evolution: Oddly inverted. Odo's face looks much more human in the first episodes than in later seasons.
Artistic License - Biology: Actually manages to avert the old Trek chestnut of casual inter-species conception, at least once: in the season 6 finale, Jadzia and Worf mention to Bashir that they're planning on having a baby. Bashir looks deflated for two reasons: the first is the realization that Jadzia really is out of his reach forever, but the second is that he realizes that he's the one they are going to rely on to get Trill and Klingon genetics to play nice together, which he openly says will be really damn unlikely and Jadzia shouldn't get her hopes up.
Artistic License - Gun Safety: A minor character in the episode Empok Nor casually has her rifle pointed at another minor character. When he points this out she protests that the safety is on, making two horrible mistakes at once. First, even with the safety on you don't point a weapon at someone unless you're actually willing to use it and second, this is an incredibly idiotic piece of information to loudly say while you're on an abandoned station with hostiles somewhere on it.
Word of God states that the Sword doesn't actually possess any supernatural attraction, it's just that the glory associated with possessing it was too much for even the most honorable Klingon to completely resist.
Artifact Title: A common joke amongst Trek fans is that the characters of DS9 don't do that much trekking.
Artistic License - Engineering: Well, it *is* Star Trek, but even so, the fact that the airlocks on the station are designed to have both doors open at once is just ridiculous.
Of course, the station was built by the Cardassians, and it is established throughout the show that they have lower engineering standards than the Federation. And given how many times the warp cores nearly blow up for what seems like no reason on the various ships of Starfleet, that's saying something.
Damar - from Dukat's unremarkable Dragon to one of the most crucial components of the later seasons.
Word of God says that the writers always had "big plans" for Damar, which is how the producers managed to convince Casey Biggs to play such an apparently unremarkable character. In "Return to Grace" (his first appearance) the director shot Damar as if he were a major character.
Chief O'Brien is an Ascended Extra from TNG, where he played a background character in the pilot, then the transporter chief. He was practically a TNG regular in the second through fourth seasons; he gained both his wife and first child during TNG.
Rom - Referred to by Quark and Odo in Season 1 as an idiot. Over the course of the show he goes from skilledwacky repairman, to station engineer, to Nagus. Quite the transition, no?
Assumed Win: Grand Nagus Zek's son, Krax, does this in "The Nagus" when Zek is about to announce his successor. But he announces the new Nagus as Quark instead, which outrages everyone sitting at the table. (Quark, for his part, was floored.)
Auction: Done in both "Q-Less" and "In the Cards".
Attempted Rape: Briefly alluded to in "The Forsaken": Sisko tells Bashir that he used to have to shepherd VIPs around the way Bashir is doing now. This part of his career abruptly ended when he punched one of them out. "It was a simple misunderstanding over his attempt to coax a young ensign to his quarters, against her will."
Avengers Assemble: "The Magnificent Ferengi", complete with holding up fingers as each new member joins the team to save Moogie.
Awesome But Practical: The prototype TR-116 Rifle from "Field of Fire" which is basically a sniper rifle modified with a transporter to fire bullets through walls.
Presumably, the ethical dilemma of Starfleet condoning a weapon whose main application would be for covert assassinations is why they never took this weapon beyond the prototype stage.
The original point—at least as stated in the episode—was to have a weapon that was capable of operating in environments where directed energy weapons were scrambled or otherwise useless. The ability to transport the bullets was an after-market add-on by the assassin in question.
Ax-Crazy: Dukat becomes this for quite awhile after Ziyal's death.
Gul Darhe'el, in the darkest way possible:
Darhe'el actually Marritza: I did what had to be done. My men understood that, and that's why they loved me. I would order them to go out and kill Bajoran scum, and they'd do it! They'd murder them, and they would come back covered in blood, but they felt clean! Now why did they feel that way, Major? Because they were clean.
Backup Twin: After the Defiant is destroyed, four episodes later a near-identical replacement is readynote It helps that this is a class of ship, so them having similar design schemes makes sense, and they even receive a "special dispensation" to rename it as such from the Sao Paulo. Somewhat justified in that by this point the class was being mass-produced for the war effort.
Notably, the second Defiant was seemingly not equipped with a cloaking device (non-canon sources confirm this, though it was not established in the show itself).
Sisko when he had to assume the identity of his Mirror-self.
Weyoun got killed five times, and each time ( except in the Finale) he is replaced by a new clone.
I am (rank and name), and I am dead. As of this moment, we are all dead. We go into battle to reclaim our lives. This, we do gladly, for we are Jem'Hadar. Remember: victory is life.
O'Brien has a version we'd all much rather follow:
I am (rank and name); I'm very much alive and I intend to stay that way.
The Bad Guy Wins: In "Our Man Bashir" in the Show Within a Show, this occurs as part of the Protagonist-Centered Morality Bashir's situation enforced upon him: the people he was determined to keep alive were all in the room with him, while the rest of the Earth and everyone on it were just a holodeck simulation. Solution: do a Face-Heel Turn and push the button that destroys the rest of the world.
This was subsequently lampshaded by the Bond-style villain (played by Sisko), as he admitted somehow he hadn't really expected to win.
Bald Black Leader Guy: Only completely fulfilled from Season 4 onwards, once Avery Brooks shaved his head.
Or rather, once the producers let him shave his head again.
At the time, he was reprising his role as Hawk for several "Spenser For Hire" TV movies. He was constantly growing his hair out and cutting it as he switched between projects. Eventually, he asked the producers of DS9 if he could just keep the Hawk look.
Sisko is currently the picture for this trope.
Baseball Episode / Game of Nerds: "Take Me Out to the Holosuite". Justified, in that Sisko was shown to be a baseball fan right from the start of the series, and although a war was going on at the episode's time, Deep Space Nine was no longer on the front line.
Batman Gambit: All over the place, and even Quark pulls off one, albeit seemingly double subverted, in "The House of Quark".
Battle Couple: Worf and Jadzia — and, amazingly, also Quark and a Klingon Noblewoman. Kira and Odo as well, although Odo'd really rather she stay out of the fighting, thank you, but is smart enough not to try to make her.
Beard of Evil: Lampshaded when Riker's transporter-accident-duplicate from an old TNG episode comes on board DS9 to steal the Defiant. Of course Riker already has a full beard, but when the reveal is made that this isn't the real Riker we all know and love, he peels his fake sideburns away to reveal that the beard is actually a goatee! It's supposed to be a dramatic moment, as the viewer is given no hints it isn't Riker at that point (though the possibility of him being possessed by an alien or brainwashed or something is always there in Star Trek)... but it comes across as hilarious if you're expecting it.
O'Brien and the Cardassian engineer suffer from a cross-cultural misunderstanding because Cardassian courtship is based on this trope and she mistook their arguing as a sign he was sexually attracted to her.
The show implies this is what Dukat is doing to try and win over Kira. She loathes him and therefore they argue almost constantly, but it only seems to increase his attraction to the extent where he'll do this even at the most inappropriate times such as life-threatening moments. One such occasion led to an in-universe lampshading when Garak lost his patience with Dukat's behaviour and he openly told Dukat off for making a pass at Kira while the station was on an unstoppable self-destruct countdown.
When Kira moved in with the O'Briens (while carrying their baby), she and the Chief started fighting constantly (mainly over her level of activity and risk-taking while pregnant and him trying to control her). Eventually, they both realize that they are actually VERY attracted to each other, much to their dismay. They both decide that it's a really bad idea and cover up any awkwardness by just letting Keiko think they are back to fighting again. Quark even refers to the pair as "the OTHER O'Briens" while eavesdropping with Bashir on one of their fights.
Beethoven Was an Alien Spy: In "The Muse", Onaya says that she unlocked the creativity of many legendary figures from throughout history.
However she offers no proof of this and may simply be lying to manipulate Jake.
Played straight in a Timey-Wimey Ball, where it turns out Sisko was probably always meant to be Gabriel Bell.
Berserk Button: In the "Siege of AR-558," Dr. Bashir treats Vargas, a disgruntled trooper complaining about being stuck in the front lines for an extended period of time, of his illnesses and Vargas eases up a bit. When Bashir tries to change the dressing on his arm, Vargas lashes out, grabbing Bashir's shoulder and pointing a phaser at his throat. Even though he absolutely hated the guy who put the bandages on for talking his ear off, seeing that guy suddenly becoming silent with a hole in the chest gave him psychological trauma, and he kept the bandage on ever since.
Colonel Kira has several, including, but not limited to, manhandling Tora Ziyal or being Gul Dukat.
Mora Pol pushed Odo's by suggesting that Odo return to his science facility on Bajor for medical treatment. Odo's experiences as a young Changeling at the facility were ... unpleasant.
Better to Die than Be Killed: Garak brings this up when he and Worf discover General Martok in a Dominion prison camp, since he supposed Klingons are supposed to kill themselves when they're taken prisoner. Worf and Martok retort that such isn't the case when there are still enemies to fight, or hope of escape.
Quark: Let me tell you something about Hew-mons, nephew. They're a wonderful, friendly people - as long as their bellies are full and their holosuites are working. But take away their creature comforts...Deprive them of food, sleep, sonic showers...Put their lives in jeopardy over an extended period of time...And those same friendly, intelligent, wonderful people will become as nasty and violent as the most bloodthirsty Klingon. You don't believe me? Looks at those faces, look at their eyes...
In fact this Star Trek series introduce us the Section 31 (said to rival even Tal Shiar and Obsidian Order) and the captain who is willing to use subterfuge AND murder just to do what is "necessary".
Big Fucking Gun: As SF Debris points out, only Sisko could have helped design the Defiant. It's so overpowered that Sisko mentions when he first unveils it in "The Search" that it nearly tore itself apart during shakedowns, and while officially classed as an Escort Vessel, it's really a Warship.
SF Debris: "It's a set of guns, strapped to an engine." "Mr. Worf, prepare a high yield torpedo and write on it; don't fuck with the Sisko."
When the threat of a Dominion invasion becomes imminent, Starfleet upgrades Deep Space Nine, which couldn't defend itself from three Cardassian warships in the pilot, into a station handily capable of holding off a Klingon fleet of more than fifty ships.
The Big Damn Kiss: Odo and Kira, in front of dozens of people on the Promenade. Also the episode made waves in universe and out...
Big Little Man: Invoked. Bashir and O'Brien are just back from a mission that involved them being miniaturised. They stand at the bar boasting about their exploits, when Quark and Odo both note that a waitress seems oddly tall next to them, sending them scurrying away to check their height in sickbay. The waitress then stands down, off the step she'd been put on by Odo and Quark, revealing the entire thing to be a gag.
Big "NEVER!": Said by Sisko in "Dramatis Personae," after O'Brien suggested all Starfleet personnel to abandon Deep Space Nine.
Said by Sisko in "In the Hands of the Prophets" (in Slo Mo for extra points.)
Also employed by Odo during the climax of "The Adversary."
And by Quark in "Who Mourns for Morn."
Big Secret: "Dax" is a typical example, albeit with an atypical defendant.
Dr. Bashir's childhood.
Bilingual Bonus: When Worf meets Jadzia Dax he says that Curzon Dax was an honored name among Klingons. Jadzia replies in Klingon with something that visibly flusters Worf, "Yeah, but I'm a lot better looking.".
Bittersweet Ending: The finale was this in almost every way, from the end of the war (thankfully) but with billions of casualties and fatalities, and almost all the main characters being separated from one another.
Bizarre Alien Biology: When Quark gets badly beaten in one episode, apparently his injuries included his lower lung being punctured.
And again in "The Sound Of Her Voice", Odo remarks on the possibility of Morn getting injured and puncturing three or four of his lungs. (And in "Who Mourns For Morn" we find out that his species has two stomachs. And normally has hair, which can fall out as a result of chronic Latinum poisoning.)
The unseen Captain Boday, whose skull is transparent.
Ensign (later lieutenant) Vilix'pran's reproductive cycle involves budding and requires a hatching pond. Parents of his species must be careful to ensure that their offsprings' wings don't get tangled, as Jake Sisko learned.
And a very rare example for Star Trek: Section 31.
Blackmail Is Such an Ugly Word: Averted. In an episode where Sisko threatens to throw Garak off the station and put him in danger of assassination if Garak doesn't help him Garak points out that this is extortion. Sisko has no problem openly admitting it (to Garak anyway).
Also averted in the pilot, when Sisko blackmails Quark into keeping his bar open by threatening to incarcerate his nephew Nog for a petty crime.
Blank Book: How Bashir determined he was trapped in Sloan's mind.
Blatant Lies: How Nog and Jake convince Weyoun that they were trying to buy a card for Captain Sisko. By first telling the truth, then telling the most outlandish story possible involving a time-traveling baseball player. Ironically, this convinces Weyoun that they're such terrible liars they must have been telling the truth the first time.
Garak communicates mostly in these, apparently preferring lies to the truth, and not in some Ignorance Is Bliss kind of way.
Bashir: "Of all the stories you told me, which ones were true and which ones weren't?"
Garak: "My dear Doctor, they're all true."
Bashir: "Even the lies?"
Garak: "Especially the lies."
Garak seems to live by this old saying: The more truth you mix with a lie, the stronger the lie becomes. And, when you can use it, the truth is the strongest lie of all.
Blown Across the Room: Happens to several civilians when the Cardassians attack the station in "Emissary". Also to Quark in "Necessary Evil" when he gets thrown half way across his bar.
Quark: She says it's because he's a pigheaded, stubborn man who puts tradition before everything else. He says it's because she's a frivolous, emotional woman who refuses to take him or his culture seriously. You can see the problem.
O'Brien: They're both right.
Bottle Episode: Given that the show had a stricter budget yet more ambitious stories, this is a given. The true achievement, though, is Duet, which cost less than half the cost of an average DS9 episode, and is considered one of the best told stories of the entire franchise.
Brain Bleach: Bashir needs some after first Quark and Grilka, and then Dax and Worf come in terribly wounded in "Looking for par'mach in all the wrong places". Fighting is just part of Klingon lovemaking
Breather Episode: "In The Cards", "His Way", "Take Me Out to the Holosuite", "Badda-Bing, Badda-Bang"
Brick Joke: In the pilot episode, Bashir asks Odo where he can practice with his phaser on the Promenade, the joke being that Odo has banned phasers on the Promenade. Years later, in "Way of the Warrior" note (which because of the retool served essentially as a second Pilot), when Odo is about to be overwhelmed by Klingons, Bashir and his phaser come to Odo's rescue.
The Bully: Mirror Universe Odo delights in taunting and physically abusing Bashir in "Crossover."
Bullying a Dragon: "Profit and Loss". Gul Toran decides to manipulate Garak into doing his dirty work for him (killing the dissident fugitives that are on the station, an act Garak disapproves of) by dangling the carrot of ending Garak's exile in front of him. Once Garak has corralled the dissidents (and Quark who was helping them), Toran intervenes intending to take the sole credit and mocks Garak with the news that Garak's exile will never end and certainly not with any trivial act such as this. Considering Garak was one of the highest ranked agents of the Obsidian Order prior to his exile, which made him one of the most powerful and dangerous men in the whole of Cardassia (and Toran knew this), Toran's attempt to manipulate and then betray Garak was the most foolish, suicidal act of his life. Not only does Garak promptly kill Toran for his audacity, he then helps the dissidents secure their escape and freedom from Cardassia.
Gul Darhe'el: "What you call genocide, I call a day's work."
Martok's utter loathing of Kor stems his influence convincing the board that Martok didn't deserve an officer's commission because he wasn't of "noble blood", a viewpoint seen as rather antiquated in the modern Empire, but passed because Kor's word carried a great deal of weight. When Worf brings this incident up, Kor admits he served as a token member of so many boards and committees, he can't even remember Martok at all!
But Thou Must: Section 31. The offer to join is merely a courtesy, you really haven't a choice whether you are willing to work with them or not. That means you, Bashir.
Came Back Wrong: Weyoun 6, who was considered to be "defective" as he believed the war with the Federation was a mistake and defected. The Vorta are genetically engineered to serve the Founders, however they didn't count on him reinterpreting that directive as also being applicable if he's working for Odo.
A major part of Weyoun 6's logic was that the Founders were dying of an apparently incurable disease, and Odo was apparently not infected. Thus, he would soon be all that was left of the Founders. Though it turned out that Weyoun 6 was missing some critical information in his analysis.
Part of Ezri Dax's story arc revolves around the fact that she's had several lifetimes dumped into her head and she was never trained to be a host.
The Cameo: During the final holodeck scene of the series, many of the production staff are in the crowd, as is every regular actor that wasn't playing a character at the time.
Casanova Wannabe: Bashir hits on everything that moves. And never wins. Although he eventually ends up with Ezri who also informs him that Jadzia would have eventually come around if Worf hadn't shown up first. Apparently, that's also what the writers had intended prior to Michael Dorn's arrival. Some fans feel that Bashir would have been justified in Breaking the Fourth Wall for the express purpose of strangling the writing staff and the producers to death.
The Cavalry: Used often. In particular, this seems to be General Martok's very favorite tactic, especially in the sixth season. Whenever the Defiant is in a tight spot, you can bet good money on Martok's ship swooping in to save the day.
Characterization Marches On: Odo once deduced Quark was lying to him because Rom was not a good engineer ("He couldn't fix a straw if it was bent"), when in later seasons he is proven to be quite the Genius Ditz.
They throw in a handwave with a line from Odo when they started to change Rom's character, "I've been watching you, Rom, and you aren't as dumb as you look…"
Rom's first appearance in a speaking role is markedly different from his subsequent appearances.
He acts more like a typical Ferengi, and is rather aggressive, yelling at Nog while dragging him around the room. It is rather jarring to watch for someone used to seeing his portrayal throughout the rest of the series.
Also jarring to anyone familiar with only the later seasons was Rom's attempt to murder Quark in the first season episode The Nagus.
Granted, that Rom's Genius Ditz capacity as a genius engineer is still played continually straight, even after he joins the engineering crew under O'Brien. His ability is continually underestimated to the end, and he uses it to his advantage. Much of the time the reasoning for the character trait is Quark's own unwillingness to pay for the proper maintenance to be maintained.
Chef of Iron: We see a Klingon restaurant open up on the Promenade and show up in a few episodes. The chef, a large fellow (even by Klingon standards) also serenades his customers with a violin-like instrument.
Chocolate Baby: The source of most of the dramatic tension for the second half of "Covenant".
Claustrophobia: In early seasons, occasional comments about small spaces or needing air suggest that Garak either suffers from it or likes using it as an excuse for his behaviour in certain episodes. It's only in the fifth series that it's revealed he genuinely suffers from this, because of something that happened to him on Tzenketh, years ago. In the seventh season, Ezri finds out Tain used to lock a young Garak in a closet as a punishment for misbehaving and believes that might be a factor in his development of his claustrophobia (he never reveals the Tzenketh incident to her). Since Garak rejects her exploration of that, its true impact on his life is yet another unsolved mystery about his past.
Coconut Superpowers: Odo could technically take any shape, but was humanoid most of the time because CG motion control effects were kind of expensive back in the day.
More than a few of the CGI shape shifting sequences look quite dated at this point.
One of the spin-off novels has a foreword that notes Odo can be much freer with the use of his ability in print, since there was no need to worry about the effects budget.
Combat Medic: Dr. Bashir ranks up there with TNG's Beverly Crusher on occasion. He once killed a Jem'Hadar with a stab to the neck.
He comments on this once, when someone mentions his skill with a phaser. He replies that he wishes it wasn't needed due to him being a medic - but this doesn't stop him from jumping into the fight when the fur really starts to fly.
Unlike most Starfleet personnel who have inexplicable expertise outside their areas of skill, Bashir is justified as he is genetically augmented, making him physically and mentally superior to almost any human.
In the pilot episode, Bashir asks Odo if there was a place on the promenade where he could get in some target practice; further justifying this.
Comically Missing the Point: In "The Way of the Warrior", we get a brief discussion between Dax and Kira, coming out of a holosuite dressed as ladies from King Arthur's Court. Dax is grumbling at Kira for punching out Sir Lancelot. Kira protests that he tried to kiss her, and she was playing a married woman! Apparently she doesn't know Guenevere's story as well as she ought to...
Confess to a Lesser Crime: When Garak survived an assassination attempt, Odo and Sisko attempted to delve into his past to see if the reason for his exile was related to the attempt on his life. Garak insisted there was no connection because he was in exile for failure to pay his taxes. Although he was right about there being no connection, no-one believed the reason he gave for being in exile.
Continuity Nod: Perhaps the funniest example of this trope happens in "Accession", a nod to the fact that in TNG, Worf helped Keiko O'Brien deliver Molly.
Quark: Did you hear? Keiko's gonna have another baby.
Worf: Unfortunately I will be away from the station at that time. Far away. Visiting my parents. On Earth. Excuse me.
In "Paradise", O'Brien mentions that his wife Keiko has nicknamed him "the black thumb" for the way every plant he touches seems to wither and die. This is a Call Back to a TNG episode three years ago.
In the pilot "Emissary", O'Brien uses some Technobabble to fool Cardassian sensors into thinking the defenseless wreck of DS9 has five thousand photon torpedoes. Four years later, when the Klingons attack in "Way of the Warrior", Sisko tells the Klingons he has those same weapons—the Klingons retort that he must be using the same Technobabble O'Brien used before, but now the station really does have all those torpedoes.
In "Little Green Men," just before getting pulled into the past, Nog is reading up on Earth history and notices that Gabriel Bell looks a lot like Sisko.
Continuity Overlap: DS9 has the distinction of being the only Star Trek series to run concurrently with another one during its entire run — not to mention the first three TNG movies. As a result, it was affected by developments elsewhere in the franchise:
Star Trek: The Next Generation: The uneasy relationship between the Federation and the Cardassians is carried over. Races introduced on TNG (Trill, Ferengi, Cardassians, Bajorans) are also heavily featured. The establishment of the Demilitarized Zone in “Journey’s End” also leads directly into DS9's “The Maquis” and the formation of the titular renegades. Finally, Gorwron is still Chancellor of the Klingon Empire — something that allows the Klingon politics arc to continue once Worf joins the cast.
Star Trek: Generations: The TNG combadges, used for the first two seasons, are retired after the Season 2 finale "The Jem'Hadar". Beginning with Season 3, the crew sports the film's updated combadge design. The destruction of the Enterprise-D is later acknowledged when Worf arrives on the station in Season 4.
Star Trek: First Contact: The original jumpsuit uniforms introduced in "Emissary" are retired after Season 5's "The Ascent". For the remainder of the series, Starfleet officers sport First Contact's new black and gray uniforms. In addition, starships created for the Battle of Sector 001 also make appearances beginning with Season 5. Finally, the Borg attack is a plot point in Season 5 as Starfleet's losses leave the Federation's navy spread thin for the Dominion's invasion.
Star Trek: Insurrection: Despite Picard's best efforts, at least some of the Son'a don't reconcile with the Ba'ku and are still manufacturing Ketracel White for the Dominion during Season 7. The new dress uniforms introduced in the film also appear in Season 7's "Inter Arma Enim Silent Leges".
Star Trek: Voyager: Though DS9 sets up the Maquis, the overlap is essentially averted due to VOY being cut off from the Alpha Quadrant. However, Tuvok's Mirror Universe counterpart appears in Season 3's "Through the Looking Glass". An Emergency Medical Hologram, along with creator Dr. Lewis Zimmerman, are featured in Season 5's "Doctor Bashir, I Presume". Finally, an Intrepd-class ship and its sets appear in Season 7's "Inter Arma Enim Silent Leges".
One episode of Voyager, after they've established contact with the Alpha Quadrant, has B'Elanna Torres reacting poorly to the news that the Maquis have been wiped out by the Dominion, which eventually sends her into a near-suicidal depression.
Cool Gate: Specifically, the stable wormhole between Bajor and the Gamma Quadrant.
Cool Starship: The Defiant, built as the prototype for the Federation's anti-Borg fleet. Described in the DVD commentary as "on a five-year mission to kick ass." It does. Repeatedly.
It also has (at first) a cloaking device, illegal under interstellar law for any other Federation starship.
Cowboy Cop: Worf in "Hippocratic Oath." He ruined Odo's investigation, forcing him to just arrest the middleman instead of taking out an entire smuggling business.
Interestingly, Starfleet believes that Odo himself is a Cowboy Cop, and makes several minor attempts to reign him in. Despite chafing and complaining about Federation procedure, however, Odo seems to follow it dutifully. In fact, Odo proves to be more loyal to Starfleet than Eddington, the man Starfleet sent to handle station security, as Eddington joins the Maquis.
Odo: "Sir, have you ever reminded Starfleet Command that they stationed Eddington here because they didn't trust me?"
Odo: "Please do."
In the early seasons before his character had been nailed down, writers were just told to think of him as Clint Eastwood. There was some justification as Odo was used to working under a Cardassian system, not a Federation one.
Crazy-Prepared: Garak just happens to have a micro-explosive handy with a prepared trigger used by only one species of assassin that would only blow up when he entered his own shop. This was of course handy because the assassin was actually there to kill him, so he pre-emptively blew himself up so the assassin would be caught.
Create Your Own Villain: The Federation and the Cardassians bear joint responsibility for the formation of the Maquis rebels following the establishment of the Demilitarized Zone in Season 2.
Crossover: A loose example with "The Maquis". The duology continues the events of the Star Trek: The Next Generation episode "Journey's End", which had aired a month before. It shows what has become of the Demilitarized Zone and the Federation colonists that have chosen to remain on the Cardassian side of the border. One of the Dorvan colonists even appears as an extra in the second installment and Gul Evek also reappears.
The Second Battle of Chin'Toka resulted in the loss of an entire allied fleet—save one lucky Klingon Bird-of-Prey. Dominion losses amounted to four or five destroyed Breen warships.
Custom Uniform: O'Brien's uniform has shorter sleeves. At the rate that DS9 is falling into disrepair, can you blame him?
Justified in O'Brien's case - he's not an officer (full rank and name is either Chief Warrant Officer Miles O'Brien or Senior Chief of Operations Miles O'Brien depending on which source you use).
The sleeves aren't actually shorter, he just rolls them up.
Starting around Season Three, Major Kira eventually trades in her militia uniform for a slinkier one-piece garment.
Odo's uniform was modified from the standard Bajoran militia uniform, too, with a higher collar and a belt (which he later discarded). Rene Auberjonois liked his Mirror Universe outfit so much, he asked the producers to create a similar one that he could wear on a regular basis.
Captain Sisko twice wears a variation on the First Contact uniform. The tunic, worn untucked, is zipped all the way to the neck, the cuffs lack the division color stripe, and the combadge is placed in the grey shoulders rather than below it. Sources seem to be divided as to whether or not this custom uniform was just a wardrobe mistake.
When he first arrived, Bashir was wearing the TNG-style uniform, rather than the color-switched ones used in DS9. (The uniform changes were apparently the whole of Starfleet changing over, but it would have made more sense for this to be shipboard uniform vs. station uniform, particularly as TNG ran another two years and didn't change uniforms.)
In one of the DS9 episodes, officers from starships are seen wearing the TNG outfit, and in TNG s6e15-16 "Birthright," Bashir is on the Enterprise wearing his DS9 uniform among the other TNG uniforms. Dax was also wearing a TNG uniform in "Emissary" when she and Bashir disembarked from the starship.
Becomes an even greater mess when Star Trek: Generations has both uniforms in use simultaneously on the Enterprise. Finally resolves itself when Star Trek: First Contact is out, and the uniforms from that movie are then in use for the rest of DS9, any alpha-quadrant based characters in Voyager (the characters on Voyager itself use the uniforms they had so they don't have to expend energy to replicate the new ones), and the following two TNG movies.
Deadpan Snarker: Garak is the show's standout example. Bashir and Odo have their moments too.
The 100-year-old Bajoran arbiter Els Renora, from the episode "Dax", stands apart as a shining example of this trope, too. Played by Anne Haney (who also played the social worker in Mrs. Doubtfire), she gets some real gems.
"I am one hundred years old. I do not have time to squander listening to superfluous language. In short, I intend to be in here until supper, not senility."
"But the penalty for these crimes on your world is death, and that is rather permanent."
But the greatest one of all comes after Tandro's mother announces that she and Curzon were in bed together at the time of the transmission, and thus Curzon couldn't have been the traitor:
"Mr. Tandro, you will want to re-examine your extradition request."
If only she'd appeared in a few more episodes, she may have even overtaken Garak in this category. As it is, Garak gets the nod based on volume.
Ziyal has a few shining moments as well, along with what might be her best one-liner in the entire show when she's forced to listen to Quark moaning about how the Dominion take-over will hit his profits.
Quark: "The Jem'Hadar don't eat, don't drink, and they don't have sex. And if that wasn't bad enough, the Founders don't eat and don't drink, and they don't have sex either. Which, between you and me, makes my financial future less than promising."
Ziyal: "It might not be so bad. For all we know the Vorta could be gluttonous, alcoholic sex maniacs."
Deconstruction: DS9 liked to do this, both to the rest of Trekdom and other works:
There are a lot of moments, often involving the Ferengi, which consider Roddenberry's peaceful and non-capitalist vision of the future (of humans) and the potential downsides of it.
The episode "Valiant" is a deconstruction of the original Star Wars film (aka A New Hope) and derivative works. One tiny ship manned by young, inexperienced but brave heroes runs down the trench of a giant super weapon ship and uses a super torpedo on its Weaksauce Weakness...only for it to fail, their ship to be blown up and most of them killed.
"Far Beyond the Stars" and "Badda-Bing, Badda-Bang" consider the trend in Star Trek to never explicitly mention race or racism (in humans) from the Next Generation onwards, implying it is so distant in the past that it is forgotten. Sisko is shocked when he experiences it in his visions of being a black 1950s science fiction writer, and seems newly aware of the ramifications of his skin colour in the past and becomes angry at Politically Correct History period holo-programmes brushing over it.
As noted above, the entire series was a rejection of the classic Trek "solve a problem, then fly on and never return" storyline, but "Crossover" was specifically a deconstruction of it. "Mirror, Mirror" ended on a hopeful note, with Mirror Spock deciding to consider Kirk's advice about changing Mirror Federation society. But as we see in "Crossover," this has extremely negative consequences, because all the other warlike societies surrounding the Mirror Federation swoop in and take over, leaving humanity largely enslaved, with very little hope of freedom.
Defictionalization: Beyond the examples shared with other Trek media, the scifi novel "Far Beyond the Stars" from the episode of the same name was later written and published.
Deliberate Values Dissonance: A staple of any Trek series. This one, however, has a much more even-handed approach than the other series, giving a more sympathetic and three-dimensional portrayal of alien values, and showing that the Federation isn't necessarily all it's cracked up to be.
Description Cut: In "In Purgatory's Shadow," upon discovering that Bashir has been replaced by a Changeling and is being held in a Dominion prison camp, Worf and Bashir ponder what mischief the Changeling is up to on the station. The show immediately cuts to Bashir's replacement delivering sandwiches to Dax and O'Brien.
In "Take Me Out to the Holosuite", Ben tells Kasidy the reason why he wants to beat the Vulcan captain's team so badly, and then tells her she's not allowed to tell anyone. He makes her promise. Cut immediately to Kasidy talking to the crew in the wardroom, having just told them: "He made me promise not to say anything, so keep it under your hats."
Despite The Plan: the episode "Badda-Bing, Badda-Bang" involved an Ocean's Eleven-style casino heist where nothing went as planned, but everyone bounced back in time to pull it off.
They actually show us what the perfectly-performed plan looks like, too, and even mislead us a little into thinking it's the actual performance of the plan, with the characters narrating/explaining their parts. This makes the blunder-filled version that much more hilarious. And exciting. (Of course, this is the common inversion of the Unspoken Plan Guarantee: since we hear the plan, you know it won't go that smoothly in practice.)
Determinator: Worf, in "By Inferno's Light". He forever earns the respect of General Martok.
Martok: Seven battles, and seven victories! What hero of legend could have done as well?
Worf: Heroes of legend do not ache so much.
First Ikat'ika: I yield! I can not defeat this Klingon. I can only kill him, and that no longer holds my interest.
A nod to the classic Marvel Comics story, except with Worf taking the Ever-Loving Thing's place as the guy who won't stay down against an opponent he can't beat.
In the same episode, Garak earns the respect of both Worf and General Martok when he defies a debilitating phobia because he knows he's the only person who can get everyone safely out of the internment camp.
Martok: There is no greater enemy than one's own fears.
Worf: It takes a brave man to face them.
Deus ex Machina: Sisko takes the Defiant into the wormhole to head off a fleet of several thousand enemy ships. Luckily, the Prophets intervene and somehow remove the entire enemy fleet from existence. It's nice to have a race of virtually omnipotent noncorporeal alien beings nearby, isn't it?
However it's only a partial example, as the Prophets' help doesn't come out of nowhere. Their powers, presence and attitude were already long established.
The Dev Team Thinks of Everything: In-universe example. When Dukat controlled Terok Nor (DS9), he installed an anti-insurgency programme as a failsafe against possible Bajoran revolt. Initial response was a station-wide lock-down that was designed to escalate towards self-destruction on the basis of any attempt to counter it and transmit an automated message to Cardassia explaining what was happening. When Dukat picks up the message, curiosity compels him to beam into Ops to see what's happening. He offers to stop the programme if they'll allow a Cardassian garrison on the station, but is refused. Unbothered, and confident they'll change their minds when destruction is imminent, he decides to beam back to his ship and wait. His attempt to leave reveals a new layer to the programme even Dukat didn't know existed. Believing him a coward who might abandon post if the situation became too much for him to cope with, Legate Kell had ensured that if he did such a thing, the programme would nullify his access codes, trapping him there to die with the Bajorans.
This is later referenced in one of the TNG novels involving Q, with Picard noting that Q didn't return to DS9 after that incident. Picard says (only half-jokingly) that if he knew punching Q would prevent him from returning, he'd have done it at Farpoint.
Disposable Woman: Jennifer Sisko, who died before she even got a line reading. We see more of her in flashbacks, and her Mirror Universe counterpart is still alive and kicking.
Considering some of the flashbacks are in the pilot....she's a striaght version of Posthumous Character.
Divide and Conquer: Using Changeling agents, the Dominion is able to easily sow discord between its enemies while simultaneously seeming peaceful.
Divorce Requires Death: In "Second Sight", we meet a famous scientist who has everything... except his wife's love. And she comes from a culture that doesn't permit divorce, so she's slowly killing herself instead. The episode ends with him killing himself instead, so that she will be free.
Doctor's Orders: Bashir relieves Kira of duty in Defiant because she's highly overworked, stressed out, and can't remember the last time she had a day off.
Doesn't Like Guns: Odo states this preference in "Captive Pursuit" and his Mirror Universe counterpart apparently does not agree. However, Odo would at the very least wield phasers in later episodes such as "Second Skin" and "Heart of Stone."
The Dominion also qualifies. Like the Nazis, the Changeling Founders consider themselves racially superior to "solids" and have no moral qualms about genocide.
The Section 31 virus which afflicts the Changeling race is reminiscent of the HIV epidemic. First, the virus is spread by the physically intimate act of linking, the closest Changeling analog to sex. Like HIV, the virus is lethal, at least until a cure is discovered in season 7. Finally, the virus is deliberately developed by Section 31, a shadow organization under the Federation government, as a means of bringing about a Changeling genocide. This strategy is reminiscent of early conspiracy theories surrounding the origins of HIV. That's right folks; Odo and the Female Changeling were metaphorically seropositive.
Don LaFontaine: He doesn't do the voice, but Quark does a pretty good impression of the stereotypical Don LaFontaine-voiced movie trailer in "Business as Usual". Which is then subverted by Dax's interruption.
Quark: Where I'm going, you can't follow. What I have to do, I have to do alone. One man... who's had enough... who's going to stand up and say...
Jadzia Dax:Goodbye, Quark!
In real life, Don voiced the syndicated promos for each episode, as he did for TNG (excepting the end where the local station put in their logo and timeslot; that was done by whoever VO'd the station at that point).
Dramatic Pause: Sisko.. develops a.. bad case of.. Shatner.. Speak.. at times! (Interestingly, Avery Brooks's dramatic background was originally as a Shakespearian Actor, just like William Shatner, and Shakespeare is known for a distinctive cadence...)
Driven to Villainy: It's suggested that the Founders were once benign. However, species in Trek are instinctively hostile to shape-shifters. After centuries of various abuses, the Founders became bent on establishing Dominion over all "solids" in the universe.
It wouldn't take a lot of instinct to be paranoid about them. Look at the panics humans have had historically, over witches, crypto-communists, etcetera. Now imagine that it's a group that not only you don't know who they are, but one that could replace members of your own family without you knowing.
Dropped a Bridge on Him: Jadzia essentially dies for being in the wrong place at the wrong time, and her death was written in such a way as to ensure she had absolutely no shot at either defending herself or accomplishing anything in her last moments.
An oblique reference was made to this on B5. In one episode, a gift shop is set up on the station. One of the characters loudly declaims this idea, saying "This isn't some Deep Space Franchise! This means something!" It should be noted that the writer of this episode, Peter David, has written several Star Trek novels.
The Deep Space Nine writers weren't above including their own subtle jabs at B5. One episode featured Bashir having to chaperone a cadre of Ambassadors visiting the station and putting up with all the crap that comes with it.
According to JMS, the Writers of DS9 actually liked Babylon 5. The PRODUCERS, not so much.
The episode that reveals this also has a Cardassian who became a surrogate father-figure to her dying. After learning of something he did during the Occupation she storms off, only to be convinced to return as "he doesn't deserve to die alone." She returns and stays with him until he dies, and then buries him next to her father.
The reason he came to Kira as he was dying says a lot about their relationship, and about him. He was folowing an old Cardasian death tradition: Giving all your hoarded secret knowledge about your enemies to someone you trust to use it in a way that will grant you posthumous revenge. (This led to her learning what he had done as well.) In the end, Kira was astonished by his ability to struggle for every last second of life, even when there was no hope of gaining anything but more struggle.