All spoilers regarding the Prequel Trilogy, the Original Trilogy, and The Clone Wars are unmarked. Examples relating to Disney's EU and the new movies can be spoiler-tagged if deemed necessary.
Tropes specifically applying to the characters based on their appearances in Star Wars Legends can be found here.
A human dominated world that was home to an Imperial Officer Academy. While the planet was captured by and joined the New Republic near the end of the Galactic Civil War, many Arkanisians retained Imperial sympathies.
- Academy of Evil: The planet was home to an Imperial Officer Academy. There was also a secret, highly exclusive 'academy within an academy' known as the Commandant's Cadets run by Brendol Hux, of which one of the prerequisites to join was killing another cadet. Most of these recruits were between the ages of sixteen and eighteen, though they could be even younger.
- Aristocrats Are Evil: The planet is part of an autocracy with a few other worlds in the Arkanis sector, known as the Regency Worlds, and they were quick to ally with The Empire, receiving many perks. Even after the Empire fell, many Arkanisians continued to support the Empire's ideals and outright allied with the First Order.
- Perpetual Storm: Rain is very common on Arkanis, with heavy rain occurring on average 2-3 days a week. Sunny days are considered rare.
- Undying Loyalty: Many Arkanisians remained loyal to the Empire after its fall, and joined the First Order to bring its successor state into power.
Armitage Hux's mother
A kitchen worker whom Brendol Hux had an affair with, resulting in Armitage Hux's birth.
- Even Bad Men Love Their Mamas: Hux appears to have some level of care or strong feeling for her, as when Poe Dameron starts cracking a Your Mom joke about her, Hux completely flips out.
- The Ghost: She is only ever mentioned rather than appearing in person, though she was still alive and living on Arkanis during the Siege of Arkanis in 5 ABY.
- No Name Given: Her name is not mentioned, with Gallius Rax merely referring to her as "some...kitchen woman".
- Small Role, Big Impact: She is the mother of General Hux, who eventually became a leader of the First Order, bringing widespread death and terror upon the galaxy.
- What Happened to the Mouse?: We don't know how involved she was in her son's life or what ultimately happened to her. When Rae Sloane evacuated Brendol and Armitage from Arkanis during the New Republic's siege, she was told not to concern herself with Armitage's mother and she was presumably left behind.
- Your Cheating Heart: She had a relationship with Brendol Hux while he was married, resulting in pregnancy.
The wife of Brendol Hux, though she is not the mother of his son, Armitage.
- Awful Wedded Life: We don't get any details about their marriage, but taking into account that Brendol cheated on her with the kitchen staff and didn't seem to care that she was left behind in the middle of a siege, it doesn't look promising.
- The Ghost: She is only ever mentioned in Aftermath: Life Debt, though she was still alive and living on Arkanis in 5 ABY.
- What Happened to the Mouse?: We never learn what happened to her after the Siege of Arkanis; when Rae Sloane got Brendol and Armitage off the planet, she was told not to concern herself with Maratelle, who was presumably left behind when her husband fled to the Unknown Regions.
A large, red, rocky world close to Tatooine. It was a key world to the Confederacy of Independent Systems during the Clone Wars and the construction site of the first Death Star. Has many moons, including one (barely) habitable ice moon called Bahryn, as well as an impressive ring system.
- Asteroid Thicket: Is home to a particularly hostile ring system. Truth in Television, however, since ring systems are far more chaotic than a much more vast asteroid field.
- Conveniently Close Planet: It's less than a parsec away from Tatooine, which helps Anakin and Padmé reach it far faster than the Jedi and Republic forces.
- Ghost Planet: After the Geonosians were wiped out by the Empire, complete with an aura of death that can be sensed by any Force-user in range.
- Hostile Weather: Heavy dust storms are a major issue on Geonosis.
- Single-Biome Planet: All of Geonosis is just oddly shaped rock spires and harsh deserts.
- Wretched Hive: A desolate wasteland that is home to sadistic insectoids who produce droids for killing, queens who use Brain Worms to control sentient beings and horrific gladiator games.
Geonosians were insect-like beings, complete with wings, nesting in colonies, who conspired with the Separatists to develop plans for the first Death Star.
- Airborne Mooks: The winged warrior caste. Also double as Elite Mooks in their hierarchy, as they are slightly larger than the drones.
- Beastly Bloodsports: A major part of Geonosian culture. Given how quickly their population can grow, days or even weeks long gladiatorial games are a important way to cut down the population and gives the survivors a chance to gain in stature.
- Death by Adaptation: In post-Prequel Trilogy Legends stories, there was nothing suggesting that the species suffered from a genocide campaign despite their involvement in the Death Star's construction and survived for at least fifty more years. In the Canon, while not every Geonosian was killed during the planet's "sterilization", it would seem the species as a whole is endangered unless there are other Geonosian hives offworld.
- Insectoid Aliens: They're a race of bipedal, human-sized bugs.
- In-Universe Nickname: They are sometimes simply called "Bugs" by Clone Troopers and other Republic forces.
- Mooks: During the Geonosis scenes in Attack of the Clones and the Geonosis arc in The Clone Wars. In terms of the Geonosian hierarchy, the wingless drone caste are the basic mooks.
- Night of the Living Mooks: There are undead Geonosians controlled by brain parasites in "Legacy of Terror".
- Racial Remnant: After the Clone Wars, the Empire proceeded to bomb the planet from orbit, wiping out nearly all the planet's queens and hives. At least two survived, Klik-Klak and a Geonosian Queen egg, which hatched into the next Karina the Great seen in Darth Vader, building a new race of Geonosian battle droids.
- Ray Gun: They carry sonic blasters, which fire sonic waves of energy.
- Screams Like a Little Girl: They let out a high-pitched shriek before getting killed.
- Starfish Language: The Geonosian language is heavy on insect-like sounds such as clicking and buzzing.
- Took a Level in Badass: In The Clone Wars, they are shown to be much more dangerous than they were back in Attack of the Clones due to being intelligent creatures instead of mindless automatons like most Separatist military (a practice later repeated with the Umbarans). This also contributed to the infamously high clone body count in "Landing at Point Rain".
- You Have Outlived Your Usefulness: Once the Empire decides to move the Death Star's construction site away from Geonosis, they proceeded to "sterilize" the planet, partially because the Geonosians are no longer essential for a work force but mostly because they want to keep the Death Star a secret.
- Zerg Rush: Their combat tactics amount to swarming their enemies.
Queen Karina the Great
The true leader of the Geonosians during the Clone Wars, Karina resides beneath the Progate Temple, where she lays eggs and issues orders to public leaders like Poggle the Lesser. After the sterilization of Geonosis, another recently hatched but infertile queen took the name.
- Adipose Rex: Although unlike most examples, it's only due to having a bloated egg sac instead of being obese.
- Aliens Speaking English: Unlike most Geonosians, the Geonosian queens are the only ones that have been seen speaking Basic. However, it's incredibly broken Basic. The second Karina apparently learned to speak Basic from the Separatist droids around her.
- Explosive Breeder: Like all insect queens, Karina the Great can lay an egg every eight seconds. Nearly all of the Geonosian queens, however, lost their ability to breed thanks to Empire's sterilization of the planet.
- Hive Queen: Of the Geonosian Hive. This Hive Mind can also extend to non-Geonosians and dead Geonosians through the use of parastic brain worms.
- Large Ham: It seems every Geonosian queen speaks in an over the top manner, despite their scratchy voice and broken Basic.
- Legacy Character: Every Geonosian queen is called Karina the Great, according to Pablo Hidalgo. This explains the seemingly Unexplained Recovery of Karina between The Clone Wars and Darth Vader. They were two different queens. On the other hand, Word of God also implies that the second Karina is only going by that name as a result of losing her sanity.
- Rapid Aging: Geonosian queens can grow from a larva to a full-grown adult within the span of two galactic standard years if they are supplied with enough oil jelly.
- You No Take Candle: Because Geonosians don't normally speak Basic, the queens' attempts at speaking it amount to this.
Tropes applying only to Karina the Great from the Clone Wars era
- Blinded by the Light: She hates bright lights and the Clone Troopers use this to momentarily stun her.
- Buried Alive: The Clone Troopers destroy the infrastructure of the Progate Temple, causing the catacombs to collapse on her.
- Mind Control: She had plans for assimilating Jedi into her Hive Mind through brain worms.
- Necromancer: She's able to control undead Geonosians, but instead of through typical necromancy, it's through brain parasites (whether they can reanimate the corpses of other species remains a mystery).
- Orcus on His Throne: Justified. Not only is she a Hive Queen, her egg sac keeps her from even moving from her spot. This was also a contributing factor in her demise when the Progate Temple collapsed around her.
- Puppeteer Parasite: Her brain worms, which she can use to enslave the minds of dead Geonosians and other species (but dead members of other species is ambiguous). They start looking for new hosts after Karina was buried, taking over a medical frigate's clone crew.
- Shadow Dictator: Played with. The Geonosians know she exists, but until the events of "Legacy of Terror", the Geonosians having a queen was only a rumor to off-worlders.
Tropes applying only to Karina the Great from the Galactic Civil War era:
- The Caligula: Thanks to being born infertile, she's not quite right in the head. She's decided to substitute battle droids for natural offspring and a substitute for the Geonosian species as a whole when in reality, she doesn't have much of an empire left to rule. Word of God implies that she calls herself "Karina the Great" because she's gone insane and is only working with the very little knowledge she has of Geonosis prior to the sterilization since she was born after it, and not just the initial assumption that every queen was called "Karina the Great".
- Cyborg: Due to her infertile status, she's replaced her giant egg sac with a giant droid factory womb.
- Last of Her Kind: She hatched from the last queen egg that survived the sterilization of Geonosis, under the care of Klik-Klak. And since she cannot reproduce naturally without a droid womb factory, she will likely be the last Geonosian Queen as well as the last Geonosian in general.
- Replacement Goldfish: The Geonosian battle droids are seen as her "children", not machines, no doubt to cope with the fact that she cannot reproduce.
- Vestigial Empire: She calls her Geonosian battle droid "children" the future of Geonosis, when the Geonosian species is endangered and she's an infertile queen.
Archduke Poggle the Lesser
Klik-Klak is a male Geonosian living in the depths of an old temple on Geonosis, controlling a leftover droid army. He is one of the last of his kind, but protects a queen egg in hope of resurrecting his species.
- Badly Battered Babysitter: For the last queen egg, thanks to Saw's cruelty.
- Beauty Equals Goodness: While still an insect, Klik-Klak has a lot cuter of a design than his people, and a lot sweeter variant of the Geonosian language, due to his sympathetic portrayal.
- The Caretaker: He protects and guards the last queen egg.
- The Engineer: Due to presumably being a worker, he has kept a shield generator and small droid army up and running for protection.
- Last of His Kind: Perhaps the last Geonosian worker drone on the planet, as Ezra could not detect kind of sentient life when he first came to Geonosis. He did have shot of not being the last one by taking care of the last queen egg in order for her to repopulate the planet, but it is ultimately revealed in Darth Vader that the queen is sterile and could only reproduce battle droid mockeries with a womb factory, making him possibly the last natural Geonosian left.
- Non-Malicious Monster: Ezra points out that he was just protecting himself from Saw's men, as they had come there with weapons and as the apparent Sole Survivor he has reason to be afraid.
- Only Known By His Nickname: Klik-Klak is named for the first thing he said to Ezra, as he isn't capable of speaking Basic.
- Rogue Drone: Donwplayed. Due to his queen being an egg, he is very independent for a member of the drone caste, but is making sure that his race survives.
- Running on All Fours: Klik-Klak is capable of doing so in order to move faster, and is able to outrun Ezra this way.
- "Shaggy Dog" Story: His protection of the last queen egg to bring back the Geonosian race amounts to this when Word of God reveals that the egg will hatch into the sterilized mad queen from Darth Vader.
- Shout-Out: The prawns from District 9 were cited by Word of God as being an inspiration to Klik-Klak and his ordeal. Both the prawns and the Geonosians were powerful civilizations, but are reduced to being fugitive survivors that meet abuse from people they run into due to Fantastic Racism and What Measure Is a Non-Human?(-oid). All they want to do is live.
- Sole Survivor: Of the Geonosian sterilization along with the unhatched queen egg. However, Word of God suggests that the deeper underground tunnels may have spared several more from the sterilization.
- The Unintelligible: Due to his species not speaking the language, though he can clearly understand Basic. Unfortunately due to this, his attempts to tell them about the Death Star his people built are confused for first the egg, and then the poison canisters that killed his people.