All spoilers regarding the Skywalker Saga and The Clone Wars are unmarked. Examples relating to Disney's EU 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.
The Galactic Republic, commonly known as the Republic or the Old Republic, was a democratic union of sovereign star systems that governed the galaxy for a thousand years. The Galactic Republic was governed by the Galactic Senate, consisting of elected officials from each system and world, and the Jedi Order served as peacekeepers. Due to the rise of Supreme Chancellor Sheev Palpatine, the Galactic Republic gradually transformed into the tyrannical Galactic Empire.
- Democracy Is Flawed: Palpatine uses the political mire of the Galactic Senate in order to ignite his scheme of overthrowing both the Jedi and the Senate to establish an Empire.
- The Federation: The Galactic Republic was remembered fondly as a beacon of civilization and peace. During its final years, however, the Republic became corrupt and eventually led to the formation of the Galactic Empire.
- People's Republic of Tyranny: During the Clone Wars, the Republic became a military dictatorship in all but name, where every single decision is made by Palpatine and each star system is overseen by a regiment of Clone Troopers all in the name of safety and defense. By the time the Empire is declared, Palpatine even points out that they are an Empire already and it's just a change in name.
- The Republic: The Trope Namer since the main protagonists are affiliated with it. Trope-wise, however, it's more like The Federation.
- Vestigial Empire: While the Republic still nominally maintained control of its territory, its bureaucracy had become bloated to the point of being insufferable and it became ineffective at resolving minor disputes.
Grand Army of the Republic
Captain/Admiral Wilhuff Tarkin
Admiral Wullf Yularen
Kilian was a human male officer who held the rank of Admiral in the Galactic Republic Navy during the Clone Wars against the Separatist Alliance. He served under Mace Windu as an admiral of the Republic cruiser Endurance.
- Badass Beard: He has a stylishly shaved pointed beard.
- Bald of Awesome: He doesn't have any hair on the top of his head, but he is no less cool or awesome because of it.
- Cool Old Guy: He is a badass fleet officer who cares about his men and tries to convince Boba that he is not a cold-blooded killer like his fellow bounty hunters.
- Distressed Dude: He and a couple of clone trooper officers were captured by Boba Fett and Aurra Sing's gang of Bounty Hunters along with two clone officers. They were meant to be used as bait for Windu, but Ahsoka had to rescue them in the end.
- Four-Star Badass: Let's see: he survives a massive ship crash landing, endures captivity for a long period at the hands of a group of brutal bounty hunters, and immediately holds one of his former captors at gunpoint after being freed.
- Going Down with the Ship: After Boba sabotaged the reactor of his cruiser, he insisted on staying to attempt a crash-landing on a nearby planet.
- Nerves of Steel: As the Endurance was falling apart around them, he remained calm, organized the evacuation, decided to go down with the ship, and put Mace Windu in his place when the Jedi tried to get him to leave as well.
Coburn was a human male officer who held the rank of admiral in the Navy of the Galactic Republic. During the Clone Wars, he served under the command of Jedi General Plo Koon.
- Old Soldier: He is one of the oldest admirals seen in the canon and proves to be a very reliable and competent commander.
- The Quiet One: He doesn't speak much and his database entry notes that he is fairly taciturn and chooses his words carefully when he does speak.
- Satellite Character: To Plo Koon, as his role revolves around being Plo Koon's fleet officer.
Dao was a human male officer who held the rank of admiral in the Galactic Republic Navy during the Clone Wars. He commanded a fleet above Ryloth during the Battle of Ryloth but was killed as a result of his ship's destruction by the Separatist navy. The admiral had been in communication with the Jedi High Council at the time of his death, urging the Jedi leadership to send reinforcements to Ryloth after Jedi General Ima-Gun Di requested to Dao that he contact the Council again after multiple attempts.
Commander Honor Salima
Species: Human (Coruscanti)
Honor Salima was the commander of the Coruscant Home Defense Fleet a decade prior to and during the Clone Wars. Notably, she served during the Battle of Coruscant, defending against a surprise attack from the Separatists.
- Awesome Mc Coolname: Honor is a pretty cool first name.
Captain Berch Teller
Dr. Sionver Boll
Sionver Boll was a female Bivall doctor who served the Galactic Republic during the Clone Wars. Upon the discovery of the Zillo Beast on Malastare, the Republic expressed interest in possible reproduction of the creature's indestructible scales as armor, calling upon Dr. Boll to lead the project.
- Motherly Scientist: Sionver is a very kind doctor who really cares about the Zillo Beast. When she was ordered to kill him, she reluctantly tries to do so in the most painless way possible.
- Nice Girl: She refuses to kill the Zillo Beast and consoles him, on the chance that he may be the Last of His Kind and that he may be sentient. She's right about him being sentient, because when he hears Palpatine telling her to kill the beast, he escapes and starts rampaging across Coruscant.
Gubacher was a male Parwan doctor who served the Galactic Republic during the Clone Wars. He specialized in artificial intelligence and worked alongside the Jedi in designing spy droids such as the D-Squad, operating a research and development lab in their temple on Coruscant. He worked with other members of the cell in Project Celestial Power, otherwise known as the development of the Death Star.
- Artificial Limbs: He has a cybernetic left hand.
- Extra Eyes: As with every Parwan, he has three eyes.
- Gadgeteer Genius: He applies several upgrades to D-Squad for the Jedi Council in order to help ensure their missions success.
- Herr Doktor: He speaks with a German accent for some reason.
- Mad Scientist: Downplayed. He's nowhere near as dangerous as Dr. Nuvo Vindi, but he still has shades of this due to his eccentric mannerisms, and seems to enjoy the thought of removing M5-BZ's memory core (the droid equivalent of a lobotomy) a little too much.
- Machine Empathy: He shows some concern for the well-being of the droids he modifies, even when he's removing parts from them.
- No Sense of Personal Space: He's rather... grabby with the droids when he tells them about the mods they're about to get. Not helped in that he has tentacles.
- Punch-Clock Villain: He continued to help develop the Death Star into the early years of the Empire, though we're not sure why he's invested in the project and how much he knows about his skills being used for the true purpose of the project.
- Spiking the Camera: He briefly looks at the camera after finishing a rant on one of droids that are part of the D-Squad.
- Starfish Aliens: Parwans are some sort of three-eyed-tentacled-humanoid-fungi creatures and they're floating in the air.
D-Squad was a military squad that served the Galactic Republic during the Clone Wars. The squad consisted of four astromech droids and one DUM-series pit droid and was placed under the command of Colonel Meebur Gascon. They were tasked to retrieve an encryption model from a Separatist dreadnought. They succeeded, but subsequently ended up crashing on Abafar and then accidentally boarding a Separatist-hijacked Republic Star Destroyer filled with explosive rhydonium in an attempt to assassinate Republic officials at a conference at Valor station. Fortunately, thanks to the combined efforts of D-Squad and the surviving droid crew aboard the hijacked ship as well as R2-D2's near-sacrifice, this was prevented.
- All There in the Manual: According to Droidography, they joined the rebels after the end of the Clone Wars.
Colonel Meebur Gascon
Meebur Gascon was a male Zilkin who served as a colonel in the Grand Army of the Republic during the Clone Wars. He dreamt of being promoted to the rank of Brigadier General. He was considered a military strategist and served with Republic command since the Battle of Geonosis. When he finally received the opportunity for in-field experience, his self-esteem issues began to surface.
- Ambiguous Situation: Droidography describes D-Squad as an "all-droid rebel force", making it vague if he stayed when they joined the rebels or not.
- Armchair Military: Deconstructed. He's a highly accomplished strategist and has earned even Mace Windu's respect, yet he has serious self-esteem issues because — as WAC never fails to remind him — he's a mere "map-reader".
- Be Careful What You Wish For: Once their mission is a success, he praises D-Squad and says he would be happy to work with them again. WAC happily informs him that they are now permanently assigned together. He is less than thrilled.
- Break the Haughty: His mission with D-Squad becomes a series of these moments for him. Of note is his time in the Void, in which he goes from thinking he's on top of the situation to nearly becoming a Straw Nihilist, before he starts seeing things from a different perspective and recovers.
- Butt-Monkey: While Mace Windu spoke highly of him, he has almost no respect from the rest of his assigned droid squad at the beginning of the D-Squad arc. Once his mission has begun, he goes through a series of Break the Haughty moments and a Humiliation Conga that includes getting treated like vermin by a racist diner owner and having to eat garbage for nourishment.
- Character Development: The D-Squad arc as a whole shows him developing from a Jerkass to a honorable leader.
- Colonel Badass: A subversion. He's very proud of his rank, but actually isn't all that badass himself.
- The Complainer Is Always Wrong: He spends most of his screentime complaining about their circumstances, while the droids solve the problem almost instantly. The most egregious instance is when they were stuck in the Void desert; Gascon and WAC spend hours sitting on the same place in total despair, while R2 and the other astromechs picked a seemingly random direction and never looked back. By chance, Gascon and WAC happen upon a group of native animals that know where to find water in the desert, which happens to be near a settlement. When they reach it, R2 and the others have already arrived.
- Cowardly Lion: He cowers and loses his cool every time he's in danger, but never gives up on the mission.
- Crouching Moron, Hidden Badass: For all his cowardice, he actually turns out to be a very decent tactician.
- Driven to Suicide: He contemplated jumping off of a junk pile, which would have been fatal for him. He chose not to.
- A Father to His Men: By the end of the D-Squad arc.
- Hypocrite: He chews out Gregor's master for treating Gregor as a slave right after he explained in detail how the Republic treats an army of Clone Troopers as slaves that are created for the sole purpose of killing and dying to protect it.
- Inferiority Superiority Complex: His ego and arrogance all come from a crippling lack of self-esteem. Specifically because of his size.
- I Just Want to Be Badass: Due to his size, he could never be a frontline soldier, which seems to be his dream given how enthusiastic he is to finally have a chance to prove himself to be more than a "map-reader".
- I Will Only Slow You Down: Tries to invoke this in "Missing in Action", after an explosion knocks him and Beezee down, telling WAC-47 to save himself, but ultimately makes it back to the shuttle while Gregor pulls of his Heroic Sacrifice.
- Jerk with a Heart of Gold: After some Character Development.
- Just a Machine: He has a low opinion of droids for their supposed inflexibility in solving problems, despite the D-Squad continually proving him wrong.
- Large Ham: He is written like a bombastic but irritable drill sergeant.
- Laughing Mad: After spending enough time in the void, he sees a mirage. When he discovers that it's fake, he begins to laugh hysterically.
- Miles Gloriosus: For all his bragging, Gascon has zero actual military experience and is the first to give up in a critical situation.
- Mix-and-Match Critters: He's a Zilkin, a species that somewhat resembles a cross between a slug and a frog.
- The Napoleon: Reminding him of his size is not a good idea.
- The Nicknamer: Called WAC "Cyclops", C4 "Flattop" and QT "Pinkie". However, he agreed to stop it after WAC "asked" him to.
- No One Gets Left Behind: He acquires this mentality in the end.
- Not So Different: WAC is quick to point out that all of Gascon's arguments against droids ultimately only show that his "programming" is the same as theirs.
- Running Gag:
- Throughout "Secret Weapons", WAC continually — and on purpose — called him "Corporal" instead of "Colonel", which he immediately and vehemently corrected.
- Another added later in the same episode. After explaining to the droids that he's not a warrior, but a strategist, WAC started to demean him as "just a map-reader" Once per Episode.
- Rousing Speech: Delivers a pretty epic one to his squad when BZ sacrifices himself.
- Sanity Slippage: Goes through plenty of this while he's lost in The Void on Abafar. Being the token organic in a squad of droids will do that to you.
- Small Name, Big Ego: "Small" in every sense. He's a map-reader, but demands to be treated as seriously as a Jedi general.
- The Strategist: The reason why WAC refers to him as just a map-reader is because he has more experience planning battles than actually fighting them.
Model: DUM-series pit droid
WAC-47 was a masculine-programmed DUM-series pit droid who served the Galactic Republic during the Clone Wars. He was a part of D-Squad along with several other droids on an important mission, serving under Colonel Meebur Gascon and piloting his ship.
- All There in the Manual: According to Droidography, he valiantly served well as a rebel pilot and even got promoted to corporal.
- Crouching Moron, Hidden Badass: For all his ditziness, WAC showed he can handle himself when he successfully tricked two Super Battle Droids into walking into an elevator and locking them inside. He's also not afraid to fight despite not being equipped with any weaponry.
- Dumbass Has a Point: Refers to Gascon as a "map reader" while Gascon insists that he is a decorated and experienced strategist... which WAC not wrongly points out is much like a glorified map reader, and Gascon lacks actual battlefield experience. He also calls Gascon out for treating the droids just as tools and not respecting them.
- Idiot Hero: While he manages to save the day several times, it is often after he has endangered the mission just as often through his incompetence. He does genuinely care about the other droids though.
- Jerkass: He is condescending towards astromech droids, insisting he is a superior model to them.
- Jerk with a Heart of Gold: He gets Gascon to stop calling himself and the other members of D-Squad by condescending nicknames. He also agrees with R2 that BZ should not be abandoned.
- Leeroy Jenkins: His brilliant plan to get a aboard a Separatist dreadnaught is to fly on a collision course with it so they bring them in with a tractor beam. He does this without waiting for Colonel Meebur Gascon's orders on how to get aboard without being noticed.
- Meaningful Name: "WAC", short for "wacky", which suitingly fits his personality and the D-Squad's misadventures. Also, his model is the DUM-series. He's kind of... moronic.
- Shout-Out: The 47 in his name is likely a reference to HK-47 from Legends.
- Verbal Tic: He is unable to refer to Gascon as Colonel, instead always mistakenly referring to him as Corporal or Captain.
Model: LEP servant droid
BNI-393 was a LEP servant droid with feminine programming. She was aboard a Republic Star Destroyer when it was hijacked by Separatist droids, who filled the ship with rhydonium in a plan to use the ship to assassinate Republic officials attending a conference at Valor Station. Bunny and other droids aboard the ship went into hiding during the takeover until the arrival of D-Squad and helped the squad retake the ship.
Master Chief/Sergeant Bric
Bric was a Siniteen Bounty Hunter hired as a drill sergeant for clone cadets in training on Kamino. Unlike his co-worker El-Les, he saw it only as a job.
- Badass Normal: He has no Force powers.
- Bounty Hunter: His original profession, but he made a contract with the Republic to take over the deceased Jango Fett's position as a drill officer of the clone cadets, trained on Kamino.
- Captain Smooth and Sergeant Rough: Has this dynamic with El-Les, although they're the same rank.
- Drill Sergeant Nasty: He considers his position as trainer only a job, and therefore doesn't care how the troopers perform or getting to know them. He even physically abuses Cutup and tries to get Domino Squad to fail their final test.
- Jerkass: He's usually downright nasty.
- Jerkass Has a Point: During Domino Squad's practice test, Shaak Ti agreed with him on the Dominos not being ready, and she also agreed with his sink or swim method below, claiming that the enemy won't play fair either.
- My Brain Is Big: Subverted. He's rather sly, but he's not even hinted to possess Super Intelligence.
- Rubber-Forehead Alien: Siniteen are humanlike aside from their large brains, yellow eyes and pale skin.
- Only in It for the Money: He claimed he didn't care about the Clone Troopers, just about getting paid for his trouble.
- Sink-or-Swim Mentor: Before Domino Squad's second final exam started, he secretly took out the ascension cables from their equipment, which was needed to scale the tower. He claimed he did it because if the Dominos really were the best as El-Les believed, they'll find a way to pass regardless of the circumstances.
El-Les was an Arcona bounty hunter who was contracted to work as a drill instructor for clone cadets in training on Kamino alongside Bric.
- Bounty Hunter: His original profession, he's contracted by the Republic to work as a drill instructor for clone cadets in training on Kamino.
- Captain Smooth and Sergeant Rough: Has this dynamic with Bric, although they're the same rank.
- Humanoid Alien: He's an Arcona.
- The Greys: As an Arcona, he mostly ressembles the usual descriptions of Greys but has a t-shaped head and light green skin.
- The Mentor: For clone cadets in training on Kamino.
- Nice Guy: He's regarded as compassionate for a bounty hunter, and wished his trainees to do well.
Argyus was a captain in the Senate Commandos who betrayed the Galactic Republic and freed Nute Gunray from captivity with the help of Asajj Ventress during the Clone Wars.
- Asshole Victim: He ends up turning against the institution he swore to protect on the grounds of greed, then ends up getting turned on and killed as a reward for freeing Nute Gunray.
- Broken Pedestal: With the Republic and Jedi unaware that he was killed right after Nute Gunray was freed, Argyus was treated as an example of how even the bravest and most loyal service members of the Republic are vulnerable to corruption.
- FaceHeel Turn: He went from a loyal Senate Commando to an agent for the Separatists.
- Greed: He admits to Commander Gree that Dooku's money, not any political ideology, is the only reason he freed Nute Gunray. He wanted to have a life other than service to the Republic, which he claims a clone like Gree would never understand.
- Helmets Are Hardly Heroic: He is the only Senate Commando ever seen in The Clone Wars with an open-face helmet, indicating his status as a key character in his only episode. Subverted in that he isn't very heroic.
- Horned Hairdo: When he has his helmet off, his hair looks like a pair of backward curving horns. As he was first seen onscreen without his helmet, this was a hint to his true nature.
- Ink-Suit Actor: He heavily resembles his voice actor.
- In the Back: Ventress impales him from the back with her lightsaber so she does not have to share credit for rescuing Gunray.
- Rewarded as a Traitor Deserves: He betrayed the Republic out of greed, but was then rewarded with a lightsaber in the back by those whom he sold out to.
- Schrödinger's Canon: According to now-Legends supplementary material, his first name is "Faro", and he comes from a Tepasi family that had members serve loyally as Senate guards for five generations, which served to make his betrayal all the more shocking to the Republic. However, since "Cloak of Darkness" is his only appearance in the Canon so far, this has yet to be canonized.
- Shoot the Hostage Taker: When freeing Gunray, he uses him a Human Shield against Gree, knowing that he would never shoot such a valuable hostage to the Republic. What he didn't count on was Gree electing to shoot the blaster out of Argyus's hand.
- You Have Outlived Your Usefulness: He receives a lightsaber to the back once Ventress no longer needs him.
R2-D2's battle droid squadron
Model: B1 Battle Droids
They were a squadron of Battle Droids that were captured by the Republic and reprogrammed to serve it during the Clone Wars. They participated in a mission to free Jedi Master Even Piell from the Separatist prison known as the Citadel.
- Blue Is Heroic: It seems that they were repainted blue to match Artoo.
- Dying Moment of Awesome: They're destroyed by the Separatist forces in their Last Stand moment.
- Famous Last Words: Just as they are being destroyed, the last one of them yelled "All for one, and one for a...!"
- HeelFace Brainwashing: They were Separatist droids before they're reprogrammed to serve the Republic.
- It Has Been an Honor: Said this verbatim to Artoo before they began their Last Stand.
- Killed Mid-Sentence: The last one of them is destroyed while yelling the Famous Last Words above.
- Last Stand: They're destroyed while holding off the pursuing Separatist forces to cover the heroes' retreat.
- Token Heroic Orc: They're the only Battle Droids in the Canon to fight on the side of the Republic.
- However, reprogrammed Battle Droids later appear briefly in Dark Disciple, where they help sneak Anakin and Obi-Wan aboard a Separatist dreadnought, likely as an reference to the arc in which Artoo's squadron appears.
- Trojan Prisoner: They use this tactic to bring Artoo inside the Citadel so they can rescue the captured Obi-Wan and Clone Troopers.
Model: R2-series astromech droid
R2-KT was a compassionate, pink-plated R2 series astromech droid with feminine programming who witnessed the rise and fall of numerous galactic powers. Serving in the Galactic Republic through the Clone Wars, R2-KT eventually came into the service of Leia Organa's Resistance several 56 years later during their war against the First Order.
- The Cameo: Katie appears in The Force Awakens in the background of the Resistance base. Her creator, Albin Johnson, confirms that it's the same astromech droid as the one introduced in The Clone Wars.
- Distaff Counterpart: To R2-D2, being the same model as him, except with feminine programing.
- Homage: She was created by Albin Johnson, founder of the 501st Legion (a Star Wars fan organization), when his daughter, Katie, was diagnosed with terminal brain cancer. The astromech droid was named and colored in her honor.
- Long-Lived: Katie has been around since the Clone Wars, serving the Grand Army of the Republic. 56 years later, she serves the New Republic and the Resistance. Also, according to the manual, she served the Galactic Empire during the Empire's reign (possibly forced by her programming).
- Palette Swap: She's essentially the same model as R2-D2, only pink and white instead of blue and white.
- Pink Means Feminine: Katie has a feminine personality program and she is painted pink.