All spoilers regarding the Skywalker Saga and The Clone Wars are unmarked. Examples relating to Disney's films and EU can be spoiler-tagged if deemed necessary.
Spoilers relating to the short story "The Crimson Corsair and the Lost Treasure of Count Dooku" from Tales from a Galaxy Far, Far Away: Volume 1 are also unmarked due to relying on the plotline of a clone trooper introduced in The Clone Wars.
Tropes specifically applying to the characters based on their appearances in Star Wars Legends can be found here.
The 501st Legion was a battalion of clone troopers that were assigned to Jedi Knight Anakin Skywalker and his Padawan learner Ahsoka Tano during the Clone Wars. The 501st fought in several key battles throughout the Clone Wars. At the end of the war, elements of the 501st were present on both Coruscant and Mandalore. Following the execution of Order 66, Darth Vader led the 501st in the assault on the Jedi Temple, while on Mandalore, Ahsoka was hunted by the clone troopers. The surviving clone troopers of the 501st continued to serve Darth Vader as his personal enforcers, becoming known as "Vader's Fist", until all of the remaining clone troopers were replaced by recruits.
Commander Appo (CC-1119)
Appo was a clone trooper who served as a sergeant (and later a commander) in the 501st. He fought in the Battle of Umbara and later participated in the attack on the Jedi Temple.
- Affably Evil: After Order 66 goes out. He's remarkably polite and apologetic when he's talking to Bail Organa, but he interrupts their conversation by coldly gunning down a Padawan.
- Brainwashed and Crazy: After Order 66 goes out, along with the other clones.
- The Cameo: He makes a few brief appearances during the Umbara arc when the situation calls for a clone with a name to interact with the main characters.
- Cool Helmet: His helmet has a downward facing arrow painted on the forehead.
- FaceHeel Turn: Along with every other clone after Order 66 goes out.
- Get Out!: He does a variation of this to Bail Organa in Revenge of the Sith.Appo: I'm sorry, sir. It's time for you to leave.
- Mook Lieutenant: After Order 66 is enacted, he becomes this for Darth Vader during the assault on the Jedi Temple. He takes command of the Temple's landing platforms to prevent outside interference during the assault.
- Out of Focus: He's of little importance and has minor screen time in Canon, as his role as Anakin's right-hand man and leader of the 501st has been greatly regulated to Rex.
- Rank Up: He is a sergeant during the Battle of Umbara and is promoted to commander by the time Order 66 gets executed.
- Shout-Out: During his cameo in The Clone Wars (which is set before he gets promoted to Commander), his helmet has an arrow facing down on his forehead. This is a reference to the similarly-named Appa from Avatar: The Last Airbender (as Dave Filoni previously used to work on it before joining The Clone Wars), who has a downward facing arrow on his forehead just like the other members of his species.
- Schrödinger's Canon: In Legends, he continued to serve the Empire as part of the 501st after the execution of Order 66, gaining a measure of respect from Darth Vader and being killed in the line of duty sometime later. In canon, all that's known about his Imperial service is that he stormed the Jedi Temple. Also, his nickname is the product of Alpha-17 bestowing it to him. In canon, the origin of his nickname is unknown.
- Would Hurt a Child: He participates in the massacre of the Jedi Temple and guns down a Padawan in front of Bail Organa.
Captain Vaughn (CT-0292)
A captain in the 501st Legion, Vaughn became part of the newly-formed 332nd Company when General Anakin Skywalker divided the Legion in two so that they could respond to the threat of Darth Maul and General Grievous simultaneously. He participates in the Siege of Mandalore alongside newly-promoted Commander Rex and Advisor Ahsoka Tano.
- Authority Equals Ass Kicking: He's an officer and he still gets into the thick of it with his men.
- Mauve Shirt: In spite of being named and receiving unique armor to stand out from the other clones, he dies in the same episode that he first appears in, getting about five lines and thirty-odd seconds of screen time.
- Palette Swap: His armor is identical to Cody's, with a blue paint job.
- Sorry That I'm Dying: Before succumbing to his wounds, he rasps an apology to Ahsoka as she holds his hand.
- Total Party Kill: While Ahsoka survives the ambush that he and his squad are subject to, Vaughn and all the other clones who went with him into the tunnels get shot dead.
- We Hardly Knew Ye: His role in "Old Friends Not Forgotten" is to point Ahsoka in the direction where Maul's forces went, which results in him getting killed fighting said forces.
ARC Trooper Fives (CT/ARC-27-5555)
Fives was once a member of the dysfunctional cadet squad Domino Squad. He and Echo became part of the 501st Legion after showing their ingenuity during the battle of the Rishi moon and became ARC troopers after the Battle of Kamino. He later discovered one of the most horrible secrets of the clone army and paid with his life for it.
- All There in the Manual: Due to the changes made to the completed version of "The Bad Batch", you will have to go to the episode guide on StarWars.com to learn that, as in the unfinished story reel, Fives was involved in the creation of Rex's strategy algorithm along with Echo.
- Appropriated Appellation: He was nicknamed "Fives" due to the large number of fives in his numerical designation.
- Arch-Enemy: To Krell. The two seem to have a special loathing for each other, even before Krell shows his true colors.
- Ascended Extra: He was meant to be a one-shot clone trooper created for "Rookies", but the episode and himself (along with Echo and Hevy) were so popular among fans that the creators decided to expand upon his character and it got to the point where he rose to become a deuteragonist.
- Back for the Dead: He was killed at the climax of the Order 66 arc, with his previous appearance being the Umbara arc.
- Badass Beard: He grows a goatee over the course of The Clone Wars. The longer it's grown, the more badass he's become.
- Big Brother Instinct: He shows this towards Tup during the Order 66 arc. He spends the first half of the story arc either staying on Tup's side to support him as best he can or worrying about him when the Kaminoans separate the two for quarantine. After hearing that the Kaminoans plan to simply kill Tup instead of performing proper surgery, he decides to save his brother himself with the help of AZI-3, and even threatens Nala Se with a poison syringe when she arrives at the lab.
- Blatant Lies: In "Plan of Dissent", he tries to claim that everything is fine in the hangar as Hardcase audibly blows it to pieces with an Umbaran ship.
- Break the Badass: The Order 66 arc is one long Trauma Conga Line for him. By the end of it, he just sounds utterly broken, and outright relieved when he dies.
- Broken Ace: He's respected and well-liked by both his fellow clones and the Jedi for his competence, intelligence, and loyalty, but he also goes through a lot of trauma over the course of the series and repeatedly loses the people he cares about to deaths that could probably have been avoided if it weren't for his corrupt superiors. By the end of the Order 66 arc, which brings his Trauma Conga Line to a head, he just sounds completely broken.
- Character Development: Over the course of the series, he develops from an inexperienced rookie following the lead of his commanders to a headstrong and independent soldier who's ready to go against any authority in order to protect his brothers.
- Characterization Marches On: In "Rookies" (his first appearance), Fives introduces himself to Rex and Cody as CT-27-5555, while Hevy is the one to tell them his name. Later episodes, including "Clone Cadets", which chronologically takes place before "Rookies", show that Fives absolutely hates being referred to as his CT-number and never uses it himself, telling others to call him Fives.
- Cosmic Plaything: In the Order 66 arc, absolutely nothing goes right for Fives, and he winds up going through a massive Trauma Conga Line.
- A Day in the Limelight:
- Shares the spotlight with Rex in the Umbara arc. While the arc focuses more on Rex, for most of it Fives is the one who drives the plot forward, by convincing the other clones to go against Krell's orders and trying to get Rex to do the same.
- He's the main character of the Order 66 arc.
- A Death in the Limelight: He's the main protagonist of the Order 66 arc, and it ends with his death.
- Death by Irony: One of his defining characteristics is his Undying Loyalty to his brothers. He dies when he's shot dead by Fox, a fellow clone.
- Died in Your Arms Tonight: After being shot, he dies in Rex's arms.
- Doomed by Canon: The second he starts trying to expose Order 66, it's obvious what's going to happen to him. Which makes it even more heartbreaking.
- Dynamic Character: He goes from an inexperienced rookie with a somewhat strained relationship with his batch mates to a hardened, badass veteran deeply loyal to all his brothers.
- Elite Army: He becomes an ARC trooper.
- Expendable Clone: Fives is very aware about this and defies it numerous times throughout the series.
- Failure Hero: In the Order 66 arc, thanks to it being a Foregone Conclusion. He fails to save Tup and expose the conspiracy, gets his life ruined as his friends and allies are convinced he's become a deranged fugitive, and he ultimately dies having accomplished nothing.
- Foil: To Rex. Rex and Fives are both deeply loyal clones who have a good degree of command of the 501st. However, Rex is loyal tot he Republic to a fault and it takes a good degree of Character Development for him to start even considering disobeying authority to do the right thing, while Fives is instead loyal to his brothers and is perfectly happy to disobey authority to protect them.
- Foregone Conclusion: Canon dictates that Order 66 will happen, so it's obvious that his attempts to expose Order 66 will fail.
- Frame-Up: Palpatine has him drugged and makes it seem that Fives has gone mad and attempted to kill him, turning Fives into a wanted fugitive.
- Go Mad from the Revelation: Finding out about all of the clone troopers being secretly controlled by inhibitor chips and the conspiracy against the Jedi surely shook his mental stability. He was still sane when he learned of it, but getting drugged by Nala Se only made things even worse for him.
- He Knows Too Much: Fives manages to uncover the malfunctioning bio-chip that caused Tup to be hostile to Jedi and he finds out that they were implanted in every clone trooper without the Jedi or the Republic's knowledge. His persistent search for the truth threatens to expose Order 66 and the Sith's involvement right in front of the Jedi and the Republic, so Chancellor Palpatine has him drugged and branded as a crazy fugitive that needs to be shot on sight, but not before telling Fives the real reason behind the clone army just to drive him mad.
- Hot-Blooded: Particularly in the later seasons, Fives is deeply passionate about his ideals and whatever plans he makes.
- I Die Free: He seemed to be glad to die without his inhibitor chip and knowing the truth, despite being unable to properly share it.
- Important Haircut: He gets his head shaved completely bald when he gets his control chip surgically removed from his brain, indicating that he's free of the chip's influence. Justified in-universe in that AZI-3 had to shave him to perform the surgery properly.
- Ironic Name: He insists on multiple occasions that he's a person with a name and not just a number. His name happens to be derived from his CT-number. When AZI-3 points this out, he replies that it might appear to be just a small difference for an outsider, but that difference means a lot to him and to every clone trooper.
- The Lancer: To Rex, serving as the third-in-command for the 501st and being more willing to operate outside the rules than Rex is should it prove necessary.
- Man in a Kilt: As an ARC trooper.
- Military Maverick: Downplayed. He will disobey orders, but only if they're suicidal or the person issuing them is blatantly corrupt.
- New Meat: He is this in "Rookies", which provides the current page quote.
- No Good Deed Goes Unpunished: His attempts to expose Order 66 and save Tup results in him being branded insane, drugged into mental instability, and finally being shot dead by Fox and dying in Rex's arms.
- Poor Communication Kills: This was deliberately invoked on Nala Se's part, as she drugged him before they got to Coruscant to make him seem insane.
- Sanity Slippage: Nala Se drugged him with some sort of compound that made him aggressive and paranoid while he was being transported back to Coruscant. By the time he found someone willing to hear him out that wasn't in on it, he was too incoherent to properly relay the knowledge.
- Screw the Rules, I'm Doing What's Right!: When he's had enough of General Pong Krell's senseless orders costing the lives of many clone troopers, he leads a fighter attack against a Separatist supply ship using hijacked Umbaran fighters despite Krell directly forbidding it. He also goes against orders to save Tup when Nala Se wants to kill him to discover what went wrong.
- Shoot the Shaggy Dog: It's enforced by the canon. He learned the truth behind Order 66, but since the Jedi never found out in the films, he's destined for failure. Having been drugged to render him incoherent, he cannot properly make his case to Anakin and Rex before he's found and shot, and Palpatine goes on to blame his death and that of Tup on madness from a rare parasite, allowing Nala Se to continue her work. However, while he isn't able to coherently explain what he knows, his ramblings convince Rex that something sinister is at work, so when Order 66 is enacted, Rex is able to resist just long enough to give Ahsoka a hint about the chips, allowing her to free Rex.
- Sole Survivor: He's the only member of Domino Squad to survive. That is until he dies towards the end of the Order 66 arc. After this, it's revealed that Echo lived, making him a subversion.
- Spanner in the Works: His desperate plea to get Rex to believe him about the control chip paid off. Once Order 66 was activated, Rex was prepared enough to resist the brainwashing for a few seconds, giving him time to prompt Ahsoka into digging up Fives' story and eventually remove Rex's chip, sparing him from Imperial control and saving his life to spend the next two decades messing up the Empire however he could, as well as ultimately helping foster the Rebellion with Ahsoka and later Rex's leadership. You could say... the dominoes fell into place.
- Tattoo as Character Type: He has a number "5" tattooed on his right temple. When he's being hunted during the Order 66 arc, it's this tattoo that's used to identify him among the otherwise identical clone troopers.
- Those Two Guys: With Echo until the Citadel arc.
- Tragic Hero: He spent much of his life pushing for his fellow clone troopers and others to regard them not as numbers but as free men who made their own choices, only to discover that they could be brainwashed at any moment thanks to a bio-chip in their brains. His attempts to warn people about this end only in failure and his death, with most of his friends thinking that Fives had gone insane. On the bright side, his efforts were not in vain as it was later revealed Rex and two others removed their control chips.
- Tritagonist: Despite Rex being the most frequently recurring clone trooper, Fives has a much more complex and rounded character arc built around him.
- Took a Level in Badass: In "Rookies", Fives was just a rookie clone trooper. By the time of the fourth season, he's an ARC trooper and a bonafide Badass Normal.
- Undying Loyalty: To his brothers to the very end. The later episodes make it clear that keeping them alive and well is his main motivation, and he's ready to go against the Jedi, the Kaminoans, and even the Supreme Chancellor for their sake.
- You Have to Believe Me!: As expected, he can't convince anyone about what he knows about Palpatine's conspiracy. It helps that he's been drugged to incoherence and paranoia.
Corporal/ARC Trooper Echo (CT/ARC-1409)
- See his entry on the Clone Force 99 page.
ARC Trooper Jesse (CT/ARC-5597)
Jesse was a veteran 501st clone trooper with a sardonic sense of humor. By the time of the Battle of Anaxes, he became an ARC trooper.
- Ascended Extra:
- Jesse first appeared in "The Deserter", but with a minor role and little characterization. It wasn't until the Umbara arc that he returned and received a fleshed-out and expanded role in addition to appearing in some of the subsequent clone trooper-focused story arcs in the series along with Dark Disciple.
- He receives a good amount of screentime during Season Seven, taking part in the Bad Batch arc and the Siege of Mandalore arc. He even becomes the final boss of the series, making him arguably one of the most important clones in all of Season Seven.
- Alas, Poor Villain: Despite trying to carry out Order 66 on Ahsoka, she bears no resentment for him upon his death, and even gives him and many of his brothers a proper burial. It helps that Jesse was not himself at the time, and hardly qualifies as a 'villain'.
- Bald of Awesome: He shaved his head so that his facial tattoo can be seen and is an impressive enough clone trooper to be made into an ARC trooper.
- Badass in Distress: He fell victim to this during the Siege Of Mandalore, being captured by Maul and interrogated for intelligence regarding Sidious' plans for the end of the war. Unusually, he doesn't get rescued or rescue himself. Maul simply gives him back to Rex and company after he's done with him.
- Became Their Own Anti Thesis: Order 66 turns Jesse into a humorless and mindlessly loyal jackboot, the complete opposite of his usual personality.
- Brainwashed and Crazy: The instant Order 66 goes out, Jesse turns on Ahsoka and attempts to kill her.
- Dead Hat Shot: In "Victory and Death", he's Killed Offscreen when the Venator crashes, and this is indicated in the aftermath when we see his helmet at the mass burial.
- Deadpan Snarker: While most clones has a sardonic sense of humor, Jesse takes it to a whole other level. Almost everything he says is some kind of quip or witty comeback.
- Death of Personality: Order 66 effectively erases the sarcastic, humorous Jesse, replacing him with a dead-eyed killer who's only interested in killing Ahsoka, no matter what. Even his longtime commander and friend Rex's attempt to reason with him only causes Jesse a second of hesitation, before he declares Rex a traitor and attempts to execute him as well. And unlike Rex, he never gets a chance to return to normal before he dies in the crash.
- Determined Defeatist: He's prone to making pessimistic quips about whatever dangerous situation the 501st has been thrust into, but he still goes in to fight.
- Dragon Ascendant: After Order 66 is enacted, Jesse serves as Rex's second-in-command hunting down Ahsoka. When Rex is deprogrammed from the Order 66 protocol and starts helping Ahsoka escape, Jesse takes full command of the 332nd Company and serves as the Final Boss for Ahsoka and Rex in the series finale.
- Evil Counterpart: After Order 66 is executed and Ahsoka frees Rex from his control chip, Jesse becomes this to Rex.
- FaceHeel Turn: After Order 66 goes out, alongside every other clone, though not of his own volition.
- Facial Markings: He's got a Republic cog symbol tattooed on half his face. He also has said symbol on his helmet.
- Fallen Hero: By virtue of Order 66, he - and every other clone in the series save Rex, who gets his chip removed - becomes this.
- Final Boss: As a result of being brainwashed by his inhibitor chip, Jesse becomes the final obstacle in The Clone Wars' series finale, leading the clones against Ahsoka and Rex as they try to escape Order 66.
- Hope Spot: When Rex attempts to talk him down, Jesse initially looks like he's considering betraying Sidious, but his programming takes over and he instead accuses Rex of treason.
- During the Siege of Umbara, he ends up nearly being executed by his brothers for disobeying orders issued by a Force Wielder. When Order 66 is issued, he's the one preparing to execute one of his own brothers for disobeying orders issued by a Force Wielder.
- He has a tattoo of the Republic's logo on his face, but he's generally shown to be the most critical and questioning of the Republic itself.
- Jerk with a Heart of Gold: He's pretty snarky and an unabashed pessimist, but he's undoubtedly a good guy.
- Knight in Sour Armor: He's very cynical about the Republic and the Clone Wars in general, but he'll still put himself on the line every time.
- Loophole Abuse: Rex tries this on Jesse by pointing out that Ahsoka is no longer a Jedi, and thus technically doesn't qualify for execution via Order 66. Jesse considers it for a minute, but the inhibitor chip takes over and he points out Rex ordered her executed anyway. Thus, he must be executed for failing to carry out the order as well.
- Man in a Kilt: Naturally, he earned a kama when he was promoted to an ARC trooper.
- Meaningful Name: In Hebrew, "Jesse" means "[God's] gift" and "king". Rex's name also means "king" in Latin. This is foreshadowing that Jesse gets promoted to Rex's rank of "commander" to replace him when Rex is relieved of Order 66.
- Mook Lieutenant: For the 332nd after Order 66 is enacted. He's the only visually distinguishable trooper with a name that is qualified to lead them after Rex is deprogrammed.
- Not Himself: After Order 66 is executed, Jesse becomes a humorless, emotionless killer, the exact opposite of his normal self.
- OOC Is Serious Business: Just to demonstrate how much of a stranglehold Order 66 has over the clones, the brainwashed Jesse becomes the very antithesis of the man he used to be. He starts referring Rex as CT-7567 (something he despises Krell for doing), sees nothing wrong with executing his fellow brother without court martial (despite being previously horrified by it under General Krell), and lacks his signature humor.
- Offscreen Moment of Awesome: What he did to get promoted to an ARC trooper remains to be seen.
- Perma-Stubble: Jesse is consistently shown sporting a good amount of stubble.
- Rank Up:
- Sarcastic Clapping: In "Plan of Dissent", he does this after General Krell orders the 501st to lock down all the Umbaran starfighters just after Hardcase properly learned how to control them... by blowing up half the hangar, including the door.Jesse: I thought the plan was to blow up the supply ship, not our own hangar.
- Screw the Rules, I'm Doing What's Right!: In "Plan of Dissent", he joins Fives and Hardcase for the attack on the Separatist supply ship for the same reasons as the former (whereas Hardcase is just a thrill-seeker), although he admits that he's only willing to fly an unfamiliar starfighter into a space battle because he doesn't like General Krell.Jesse: You know, I'm only doing this because I don't like him.
Fives: That's reason enough.
- Tattoo as Character Type: He sports a large tattoo of the Republic insignia on his face. Ironically, he's shown to be pretty cynical about the Republic itself.
- Tragic Villain: After Order 66 is given, Jesse is, against his will, turned into a mindless jackboot utterly loyal to the Empire, forced to become the very antithesis of the man he once was.
- You Are in Command Now:
- With Echo having (apparently) died at the Citadel and Fives later being executed, he ends up being made an ARC Trooper in their place.
- He's promoted to commander after Ahsoka removes Rex's chip, relieving him of Order 66, thus leaving Jesse the only other clone around qualified to lead the 332nd against Ahsoka. It only lasts for a few hours until he ends up dead.
Denal was considered one of the best clone troopers in the 501st.
- Character Death: He gets killed after attempting to apprehend Cad Bane, who takes his armor and impersonates him.
- Cool Helmet: He is distinguishable due to his unique helmet markings, which include blue strips coming down from his helmet visor and one going along the ridge of his helmet.
- Jet Pack: He uses one when infiltrating Skytop Station alongside Anakin, Ahsoka, Rex, and several other clone troopers.
- Mauve Shirt: He appeared in a couple of episodes and was one of the first non-officer clone troopers to have custom armor prior to being killed off in his second appearance.
- Schrödinger's Canon: According to The Clone Wars supplemental material, both he and Rex were present at the Battle of Geonosis. However, as this material was under the Legends banner, this has yet to be re-established.
- We Hardly Knew Ye: He wasn't established to have much of a personality, only distinguished by his custom armor. Then Cad Bane offs him in his second appearance.
Dogma was a fanatically loyal rookie clone trooper assigned to the 501st Legion starting with the Battle of Umbara. His fanaticism for the chain of command became his undoing when General Pong Krell temporarily took control of the 501st.
- Alas, Poor Villain: More like Alas, Poor Hate Sink, but the other clone troopers appear to be saddened when he's taken into custody for killing a Jedi.
- Anti-Villain: Dogma's not really a bad guy, just a misguided rookie who believed in the wrong person. Even his own brothers don't fault him for it, as they were all in his shoes at one point or another.
- Appropriated Appellation: He's dead-set on following orders without question.
- Bad Guys Do the Dirty Work: Rex can't quite bring himself to shoot the unarmed, kneeling General Krell In the Back, so Dogma snatches Fives's pistol and does it for him. Granted, he isn't really a bad guy anymore by the time this happens.
- Deconstructed Character Archetype: He is one for the idea that clone troopers are mindlessly obedient slave soldiers that follow every order no matter what (which The Clone Wars has gone to great lengths to disprove). When placed in the command of an uncaring and wasteful Jedi general, he fanatically supports his strategies while the 501st veterans see Krell as a reckless Control Freak. Once Krell's true nature starts exposing itself (starting with tricking the 501st and 212th Battalion into killing each other), Dogma's sense of loyalty starts to break down and is finally shattered once Krell reveals why he did it. After he executes Krell, he is then taken into custody for killing a Jedi.
- The Dog Bites Back: As Krell's actions become nastier and nastier, Dogma remains loyal to him, even after he tricks the troops of the 501st and the 212th into killing each other. However, after Krell explains his plans to Rex and the others, Dogma grabs Fives's pistol and kills the traitorous Jedi.
- The Dragon: He was unwittingly one for Krell during the Umbara arc. He's the only one who remains loyal as the other clones begin to question Krell's tactics, which makes him Krell's perfect pawn.
- Et Tu, Brute?: He completely loses his cool when Krell is exposed as a traitor:Dogma: How could you do this? You had my trust, my loyalty. I followed all of your orders, and you made me kill my brothers!?
- Facial Markings: He has a v-shaped tattoo on his face, similar to the decal on his helmet.
- Hate Sink: He's such a dogmatic suck-up to Pong Krell that even Rex and Fives scold him. He gets over it eventually.
- Heel Realization: He's genuinely crushed when he realizes that his faith in Krell was horribly misplaced.
- Horrible Judge of Character: He trusts Pong Krell completely and doesn't question his increasingly suicidal orders at all until it's too late.
- In the Back: Captain Rex can't quite bring himself to shoot Krell this way. Dogma can.
- Jerk with a Heart of Gold: Despite his sycophant nature, he genuinely wants to be a good soldier, and does care about his brothers.
- Kick the Son of a Bitch: While his usurping of Rex's executing Krell was out of line and got him arrested, his killing of the treacherous Besalisk was more than warranted.
- Lawful Stupid: He maintains his stubborn belief in Krell's leadership, even when it's clear that Krell is a traitor. It takes Krell himself confessing to treason to break Dogma of his blind loyalty.
- Meaningful Name: A man who adheres strictly to military protocol is called "Dogma".
- My God, What Have I Done?: He pretty much loses it when he realizes that his loyalty to Krell was doing nothing but get his comrades killed, on purpose.
- New Meat: He is a rookie who joins the highly-experienced 501st at Umbara. Unfortunately, being a rookie whose first major battle is under the command of a ruthless general who also happens to be The Mole while trying too hard to be a model soldier and make a good first impression takes its toll on him.
- Pet the Dog: When the clone troopers get attacked by Umbaran banshees, he's the one who helps a fallen clone to his feet. He's also concerned for Waxer when he's fatally wounded and goes with Rex to check on him.
- Put on a Prison Bus: He last is seen being arrested for killing a Jedi, and his fate afterward is currently unknown. The Jedi eventually did learn that Krell was a traitor, but it's also noted in Scum and Villainy that clones don't get due process, so nothing can be said for sure of his fate.
- Suspiciously Similar Substitute: His personality is similar to Echo's, but with his attitude towards hierarchy and orders turned Up to Eleven and later deconstructed. Anakin also notes that he seems very similar to Rex.Rex: He's wound tight, but he's loyal.
Anakin: He kinda reminds me of you.
Rex: Maybe. Back in the day.
- Those Two Guys: With Tup during the Umbara arc.
- Undying Loyalty: To Krell. It backfires metaphorically for Dogma, literally for Krell.
- Yes-Man: Deconstructed. He was ready to follow Krell's every order, without question, including the execution of Fives and Jesse. Even when Krell proved to be a traitor, he defended Krell, insisting that the clone troopers had to follow all orders. But once he learns why Krell did what he did and that there was no grand plan behind all his actions except to kill as many clone troopers as possible, Dogma becomes completely broken.
Hardcase was a veteran, but somewhat mentally unhinged 501st clone trooper with a love for battle.
- Ambiguous Disorder: According to him, he thinks the leak he had in his growth acceleration chamber made him a bit hyperactive.
- Ascended Extra: Hardcase first appears in "The Deserter", but with a minor role and little characterization. It isn't until the Umbara arc that he had a major role and received his Blood Knight tendencies.
- Bald of Awesome: He has a shaved head, and he's a badass Blood Knight who sacrifices himself to save his brothers.
- Blood Knight: He's rather trigger-happy and others constantly lampshade that he tends to "dive in head first" into the action.
- Characterization Marches On: In "The Deserter", he had little characterization and seemed to be levelheaded. It wasn't until the Umbara arc that he became the somewhat unhinged Blood Knight we now know him as.
- Drives Like Crazy: Whenever he gets behind the wheel of an Umbara ship, expect a lot of destruction.Jesse: Hardcase can fly one of those things.
Tup: Yeah, it was more like trying not to crash,
- Expy: Of Hevy during the Umbaran arc, down to his Blood Knight tendencies and utilization of the Z-6 rotary canon. Fives even notes that Hardcase reminds him of his late comrade. And the similarities even close out with Hardcase giving his life by staying behind to detonate a bomb.
- Facial Markings: He has several tattoos on his face.
- Falling into the Cockpit: In accordance with Rex and Fives's plans, he pilots an Umbaran starfighter in "Plan of Dissent". He has no pilot training and the starfighters are controlled by motion capture, which is above the galactic standard, but despite some initial difficulties, he figured out the controls rather quickly.
- Gatling Good: He used a Z-6 rotary blaster cannon during the Battle of Umbara.
- Heroic Sacrifice: When a ray shield prevented him, Fives, and Jesse from blowing up the main reactor of a Separatist supply ships main reactor by firing on it, he smashed the damaged plasma-canon of his hijacked Umbaran fighter into it, blowing it up and saving the 501st from being exposed to the rockets launched from it.
- Lethal Klutz: If he's in an Umbara ship, anyway. He once managed to destroy an entire hangar because his solution to piloting the ship was to press all of the buttons.
- Leeroy Jenkins: As described in Blood Knight, he's known to "dive in headfirst". The only reason this doesn't cause problems for his squad is that he has his fellow squadmates to restrain him ahead of time and he seems to know when discretion is required. According to an older version of the online databank (which also described relationships between specific entries), Kix has treated him more times than any other clone trooper that's come to the infirmary.
- Mauve Shirt: He appeared in "The Deserter", but didn't have much of an actual role. He returned during the Umbara arc and became an important character for the first three episodes before sacrificing his life for the others.
- No Body Left Behind: He was in the middle of an explosion that blew up the Separatist supply ship.
- Suspiciously Similar Substitute: He wasn't always this, but he became one for Hevy during the Umbara arc, right down to the Z-6 rotary cannon as his Weapon of Choice (although he's also seen using a DC-15a blaster carbine sometimes), his Blood Knight tendencies (albeit a bit more mentally unhinged while still being sane), and sacrificing himself in an explosion to complete his mission.
Kix was was a clone medic who served in the Republic's 501st Legion during the Clone Wars. One set of unfortunate circumstances later, he ends up being the last clone left alive by the time of the First Order.
- Bald of Awesome: He's almost bald, but he's still cool. The design his hair is in has a zigzag pattern on it too, which is a nice touch. By "The Bad Batch", however, he has grown his hair out.
- Beard of Sorrow: According to Word of God, he grows out a beard after joining Ithano's crew because he can't bear to look at the iconic clean-shaven face of his brothers every time he looks in the mirror anymore.
- Beware the Nice Ones: He gives Rex an absolutely vicious What the Hell, Hero? after he suggests leaving several injured clones behind during a battle on Umbara.
- Break the Cutie: He's pushed to the absolute breaking point in the Umbara Arc by having to watch his brothers constantly die, particularly the wounded ones. It gets to the point where he has a full-on Freak Out.
- Combat Medic: His main role in the 501st.
- Cosmic Plaything: The universe loves to make Kix suffer, especially if it's by making him watch a ton of his brothers die.
- Demoted to Extra: Kix appears in two episodes of Season 7 to trade a few lines with the other clones, get punched by Crosshair, and then evacuate Commander Cody... and that's it. He is then quietly Put on a Bus due to Tales From a Galaxy Far Far Away.
- Doctor's Orders: If you're injured, Kix outranks you. No arguments allowed. This applies even to his own Captain, as Rex finds out after getting shot in the chest and attempting to immediately get back to the mission at hand.
- Doomed by Canon: His attempts to try and warn the Jedi of Order 66 was destined to fail no matter what, resulting in his fate.
- Expository Hairstyle Change: In The Clone Wars Season 7, Kix drops his Bald of Awesome in favor of a full head of hair styled in a way that's similar to most of the other clones.
- Facial Markings: He has several tattoos on his head, including the phrase "A good droid is a dead one" in Aurebesh.
- A Father to His Men: As the main medical officer of the 501st Legion, the health and well-being of the men come first to the point that he can even override his CO's authority if necessary (unless it's General Krell he's serving under, in which case he's forced to put up with his reckless strategies like all the other clone troopers).
- Fish out of Temporal Water: He is awoken from a cryo-stasis pod just a few months prior to the events of The Force Awakens and roughly fifty-six years after the Clone Wars ended.
- Freak Out: In "The General", as the battle with the Umbaran Juggernauts keeps getting worse and casualties are growing, he eventually has a breakdown and starts screaming in rage and wildly shooting at his surroundings. Tup has to tackle him out of the way of an enemy tank to get him to stop.
- He Knows Too Much: Thanks to Fives, he realized the Sith conspiracy behind Order 66 and tried to warn the Jedi Order and his fellow clone troopers about it. However, just like Fives, his attempt was thwarted. This time it was by the command of Count Dooku, who had him cryogenically frozen onboard a Separatist ship to be personally interrogated, particularly on where he got his information and if any other clone troopers found out. The ship never made its destination as it ended up crashing into a remote desert world in an attempt to evade Republic forces, remaining there for over 50 years.
- Human Popsicle: He is captured by Separatist droids at the end of the war and put on ice while being transported for interrogation by Count Dooku. However, the ship carrying him is ambushed and crashes on a remote planet. He is finally thawed out almost sixty years later.
- Last of His Kind: Given that he is awoken from cryo-sleep over thirty years after the Battle of Endor, the odds are good that Kix is the last living clone trooper by the time of the Sequel Trilogy and one of the few surviving veterans of the Clone Wars. On top of that, he's perhaps the last living person to know the truth about Order 66.
- Late-Arrival Spoiler: You might even be spoiled by It Was His Sled, due to Just Here for Godzilla for the "Crimson Corsair" short story.
- My Greatest Failure: His greatest failure is never being able to save the Jedi and the Republic from the execution of Order 66, leaving him to live in a time where that time has since been long gone and they all died.
- Nice Guy: He's generally shown to be rather kind, caring, and compassionate, and he's the most polite member of the 501st.
- No One Gets Left Behind: In "The General", Six becomes extremely frustrated when Rex orders him to focus on the battle instead of trying to retrieve wounded comrades (vulnerable either to the Umbaran Juggernauts or banshees willing to feed on even half-dead clone troopers).Kix: We gotta get these guys out of here.
Rex: Forget it. We have to leave them.
Kix: We can't just leave them, sir!
Rex: We don't have a choice. That's an order.
Kix: You sound like General Krell.
Rex: Look, Kix, it's more important to save yourself now. If we survive, you can patch up the wounded later.
- "Shaggy Dog" Story: He tried to warn the Jedi Order about Order 66. Not only did he fail and Order 66 came to pass, but he was frozen for more than half a century, meaning that all his friends and comrades he fought alongside with are either old or dead by the time he awakens and he never got a chance to fight against the Galactic Empire like Rex did to avenge the Jedi.
- Space Pirates: He ends up joining the Crimson Corsair's crew because he has nowhere else to go.
- To Be Lawful or Good: Like Tup, he was part of the firing squad during Jesse and Fives's execution, and like him and the rest of the squad, chose not to kill them.
Tup was a rookie clone trooper who served in the 501st Legion. During the Battle of Ringo Vinda, Tup's bio-chip malfunctioned, resulting in him executing Clone Protocol 66 early and killing Jedi General Tiplar.
- Boom, Headshot!:
- Brainwashed and Crazy: The behavioral control chip implanted in every clone trooper to ensure they carried out Order 66 malfunctions in Tup, causing him to execute Master Tiplar in the middle of battle. His mental state rapidly deteriorates after that, and he eventually dies.
- Bring It: During the fight against General Krell, he stands next to a Combat tentacled Man-Eating Plant and lures Krell towards it by shouting "Hey, ugly! Come and get me!" at him. Krell charges at Tup and promptly steps on one of the creature's tentacles, which immediately catches him.
- Character Death: He dies shortly after Fives and AZI-3 remove his chip.
- Dying as Yourself: After spending two episodes in a delusional fugue state after his bio-chip malfunctions, he regains control of himself just in time to pass away.
- Embarrassing Nickname: In British English, "tup" may be either a ram or sexual intercourse.
- Extreme Doormat: Initially, he goes along with the wills of people with more forceful personalities rather than make his own decisions. He starts taking some initiative after the 501st finally turns on Krell, luring the Fallen Jedi into a trap.
- Facial Markings: He has a teardrop tattoo.
- Good Counterpart: To Dogma during the Umbara arc. Both are rookie troopers on their first deployment, but whereas Dogma remained loyal and obedient to the incompetent General Krell, Tup sides with the veteran troopers like Rex and Fives, even refusing to execute his brothers when ordered.
- He Knows Too Much: Tup's malfunctioning inhibitor chip causes him to killed General Tiplar during a crucial battle—something Admiral Trench takes notice of and informs Count Dooku right away. Realizing that he could potentially blow Order 66—and thus the plans to wipe out the Jedi—Sidious orders Dooku to intercept the medical shuttle carrying Tup back to Kamino and take him back to Serrano for examination. Anakin and his troops stop that from happening, but the truth behind those chips is never exposed until it's too late.
- I Die Free: The faulty inhibitor chip that was implanted into his brain contains Order 66, the protocol that brainwashes clone troopers into executing Jedi. When it's removed, he says he's happy he's freed from "the mission that never ends ... the mission in our nightmares..." before passing away.
- Madness Mantra: "Good soldiers follow orders..."
- My God, What Have I Done?: After killing Jedi Master Tiplar, he has this reaction during his mentally clear phases.
- Nice Guy: He's generally shown to be rather amiable, if weak-willed.
- Phlebotinum Breakdown: Due to a faulty inhibitor chip, he is forced to execute Order 66 a bit too soon.
- Spanner in the Works: His malfunctioning inhibitor chip is what ultimately saved Ahsoka Tano and Rex in the long run. Had it not gone off prematurely, Fives would have not become suspicious about Tup's behavior that would lead him to uncover the chip conspiracy and the means to get remove it from other clones, the later being most useful when Order 66 is transmitted to Rex.
- Those Two Guys: With Dogma during the Umbara arc.
- To Be Lawful or Good: When he's ordered to execute Fives and Jesse, Tup, along with the rest of the firing squad, chooses not to kill them, opting to be good over lawful. It then gets painfully invoked in Season 6, when the inhibitor chip that's supposed to force him to carry out Order 66 without question malfunctions, causing him to kill General Tiplar in the middle of a battle.
- Took a Level in Badass: He grows from an Extreme Doormat rookie to a competent, wily soldier. It makes it even more tragic when his malfunctioning inhibitor chip locks him into a helpless state.
Sterling was a clone trooper who fought in the Siege of Mandalore as part of the 332nd under Advisor Ahsoka Tano and Commander Rex. He and his unit were jumped by Maul during the battle, leaving him one of the few survivors of the incident.
- Curb-Stomp Battle: He was on the receiving end of this. He and his unit ran into Maul while sealing off the city. Maul chopped right through Sterling and company, snagged Jesse, and was gone as quickly as he came.
- Hero Worship: Subtle, but he looks up to Jesse, who being an ARC trooper, was likely the most experienced of the troops who had the misfortune of facing Maul.
- Sole Survivor: Besides Jesse, who gets kidnapped, he appears to be the only survivor of Maul's rampage through the sewers.
- Uncertain Doom: He likely died along with the rest of his brothers when Order 66 came down and Maul dealt with the situation by crashing their warship into a moon.
Hawk was a clone pilot serving in the 501st. He participated in several of the most important battles of the Clone Wars as both a gunship and fighter pilot.
- Ace Pilot: Aside from being able to land gunships under extremely heavy fire, Hawk is also shown to be a skilled fighter pilot during the Battle of Scipio.
- Cool Helmet: His flight helmet has wings painted on the front.
- Gunship Rescue: Routinely flies a LAAT/i to drop off and pick up Jedi and clone troopers under heavy fire while providing fire support, most notably extracting Anakin and his men from the top of a building where they were cornered during the Battle of Christophsis.
- Meaningful Name: He's a pilot named Hawk.
- What Happened to the Mouse?: His fate at the end of the Clone Wars is unknown, and if he was still alive, it's unknown if he stayed with the 501st or if he was transferred to the 332nd (if the latter, it would almost certainly mean that he died during the Siege of Mandalore or when their cruiser crashed).