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.
Royal Imperial Academy
The commanding officer and President of the Royal Imperial Academy.
- Bald of Evil: His appearance in the manga adaption of Lost Stars revealed that he was bald.
- Even Evil Has Standards: Despite being speciesist, Deenlark was outraged by several cadets attacking Thrawn and Eli in an ambush and was determined to see them punished, despite their families all holding political influence on Coruscant, as he felt he had tolerated their antics long enough.
- Fantastic Racism: He really despises aliens and non-Core Worlders, and his reaction to meeting Thrawn and Eli is anger at having to tolerate their presence at his academy.
- Jerkass: During his first meeting with Thrawn and Eli, he questions if Eli knows words like "rhetorical" and muses on whether he knows how to turn on a computer. Then he asks Thrawn what his excuse for living is and only gives him three months to graduate (Thrawn, being Thrawn, excels and graduates with honors).
- Hidden Depths: Although he is racist and beholden to the Imperial elite on Coruscant, Deenlark is quite pleased and amused by Thrawn's solution to punish the cadets who attacked him and Eli by discreetly transferring three to Skystrike Academy and leave the other two terrified of whatever mysterious fate their fellow conspirators met.
- Uncertain Doom: If he was still the head of the Royal Imperial Academy after the Battle of Endor, his fate during the rebel insurgency and Imperial infighting on Coruscant probably is not pleasant.
Son of a general in Imperial Intelligence, he was a roommate of Thane Kyrell and Nash Windrider at the Royal Imperial Academy on Coruscant. After graduating, he worked in developing new kinds of weaponry.
- The Bus Came Back: In the novel's last scene, it's mentioned that he's survived to join Grand Moff Randd's Imperial Remnant, and is the one who developed the new cannons fitted on the TIE fighters of the Garrote.
- Comic-Book Fantasy Casting: The author imagines him being played by Harry Shum Jr.
- Flat Character: Out of all of Thane and Ciena's roommates, he's the one with the least page time and development.
- Gadgeteer Genius: Invented a new kind of starfighter cannon.
- Put on a Bus: After their graduation from the Academy, he's assigned a posting far away from the other characters.
- Alexsandr Kallus on the Crew of the Ghost page.
- Thrawn on the Imperial Navy page.
- Eli Vanto on the Imperial Navy page.
- Jovan on the Lothal Imperial Garrison page.
- Dalven Kyrell on the Imperial Navy page.
- Ciena Ree on the Imperial Navy page.
- Thane Kyrell on the Rebel Alliance and New Republic Starfighter Corps page.
- Kendy Idele on the Rebel Alliance and New Republic Starfighter Corps page.
- Nash Windrider on the Imperial Navy page.
- Jude Edivon on the Crew of the Death Star page.
An Imperial flight instructor at Skystrike Academy.
- Ace Pilot: He's a flight instructor at a prestigious flight academy, so presumably he's this.
- Benevolent Boss: Unlike the other Imperial instructors shown so far, he hasn't done anything that would be considered overkill on his cadets.
- Continuity Snarl: There is some confusion over just what his last name is.
- Mythology Gag: His voice actor previously appeared in the original 2005 Battlefront II as the Imperial team's Mission Control.
- No Name Given: His name isn't stated in the episode, but credits list him as "Goran". However, at the time of the episode's release, the Databank referred to him as "Argin Relik", though this was later changed to his name in the credits.
- Tuckerization: "Goran" is derived from Goran Josic, a model artist on Rebels.
- Villain Has a Point: He and Captain Skerris point out to Wedge and "Ria" that hesitating in combat because you're feeling particularly merciful won't be reciprocated by the enemy, as standard in rules of engagement.
Cadet Rake Gahree
A classmate and friend of Wedge Antilles and Hobbie Klivian at the Skystrike Academy, an Imperial TIE pilot academy. He attempted to defect with them with the help of Sabine Wren, but they fail on their first attempt, costing Rake his life.
- Ace Pilot: He attended Skystrike, after all.
- All There in the Manual: His name really is Rake, and his last name is Gahree.
- Black Dude Dies First: Of the named Imperials and major characters in "The Antilles Extraction", he is the only one that dies.
- Defector from Decadence: Or he almost was.
- Forgotten Fallen Friend: The only mention of him after his death is that Hobbie fears they'll end up dead like Rake when they get imprisoned. Justified, since there was no time for mourning and they needed to prioritize their escape first, and his death could have been mourned in the aftermath. He gets an issue in the magazine comics about Wedge, Hobbie, and the Gahree family dealing with his death.
- Foregone Conclusion: Since his name is unfamiliar in comparison to his friends, it was a sign that something was going to happen to him that caused him not to be a part of the Rebel Starfighter corps, or at least onscreen in the movies. He ends up dead halfway through the episode.
- Make an Example of Them: He is the unlucky pilot randomly chosen by Skerris to kill.
- We Hardly Knew Ye: We don't get much about him other than presumably that the Empire's brutality was Not What I Signed Up For and that he was friends with Wedge and Hobbie.
- Wedge Antilles on the Rebel Alliance and New Republic Starfighter Corps page, ran away from the Skystrike Flight Academy on Montross under a charge of treason.
- Derek "Hobbie" Klivian on the Rebel Alliance and New Republic Starfighter Corps page, ran away from the Skystrike Flight Academy on Montross under a charge of treason.
Commandant Brendol Hux
Cadet Anya Razar
A cadet at the Imperial Academy on Arkanis. After arranging fellow cadet Xan Lanier's death, she was inducted into Commandant Hux's secret Commandant's Cadets program.
- Ambition Is Evil: She'll do whatever it takes to ascend the Imperial ranks, including killing other cadets.
- Ax-Crazy: If looking at her other trope entries here wasn't obvious enough, what kind of kids kill others to serve their ambitions?! Clearly, the Commandant's Cadets...
- Kids Are Cruel: If the book hadn't stated she was the same age as Zare, then you'd think she was another adult Imperial officer with that typical self-serving and homicidal attitude. She's even willing to kill other cadets to get where she wants.
- Make It Look Like an Accident: She makes Xan's murder look like a training accident, per the rules of the Commandant's Cadets.
- Social Darwinist: The Commandant's Cadets were encouraged to look down on the worst-performing students in the Arkanis Imperial Academy, then eventually killing them and Make It Look Like an Accident to prove their mettle.
- Would Hurt a Child: Even though she's an adolescent herself. It's like Aresko's words about no camaraderie and encouraging Chronic Backstabbing Disorder, except Up to Eleven.
Cadet Penn Zarang
Homeworld: Syngia Station
A cadet at the Imperial Academy on Arkanis. After the death of his parents by Zygerrian slavers, Penn joined the Empire, believing that his family's lack of input in politics was what caused them to be defenseless, so he hoped to bring stability and security to remote sectors such as his own after graduating. However, his poor performance at the Imperial Academy made him a target of the Commandant's Cadets, but with the help of fellow cadet Zare and Lieutenant Chiron, he faked his death.
- Dark and Troubled Past: His parents worked on a depot in Syngia Station, wanting a quiet life uninvolved in politics. When the station was visited by Zygerrian slavers, the Zygerrians decided to Leave No Witnesses. Penn managed to hide, but his parents were captured. He later learned that his parents died en route to Zygerria.
- Faking the Dead: Chiron had a nerf get buried on Academy grounds, then had Zare claim it was Penn's corpse.
- Sacrificial Lion: In order for Zare to be initiated into the Commandant's Cadets, he was told to kill Penn and Make It Look Like an Accident. Instead, Zare and Chiron managed to pull some strings together so Penn could survive and make the Commandant's Cadets think Zare killed him.
- What Happened to the Mouse?: Possibly Uncertain Doom. After faking Penn's death, Chiron promises to bring an investigation of the Commandant's Cadets up to Tarkin personally if needed and to get Penn reassigned to another Imperial Academy. There's no indication that Chiron managed to file a report before his death and since Commandant Hux managed to stay in the Imperial ranks all the way to the end of the Galactic Civil War (in addition to the fact that if Tarkin knew about what Hux was up to, he'd be pissed about Hux not following standard procedure and would put a halt to it immediately), we can assume that Penn never rejoined the Empire and stayed in hiding for an indeterminate amount of time.
- See the Lothal Imperial Garrison page.
Species: Human (clone)
An instructor at the Imperial Academy on Eriadu. A veteran clone trooper, he saw the enlisted soldiers of the Empire as weaker and inferior.
- Jerkass: Unlike the clones we saw in The Clone Wars, Lassar is a complete a-hole. Even if it's likely out of possible bitterness about the entire outcome of the Clone Wars like other aged clones like Rex and Wolffe, it doesn't justify him supporting abuse on the young Imperial cadets.
- Training from Hell: Mostly on the cadet that became TK-462, including encouraging the other cadets to beat him up every morning and making him run with broken glass in his boots for several meters before he let him graduate.
Among one of the cadets bound to the Imvur system until a schematics failure crashed their ship's systems, stranding them in space until the Ghost crew came across their S.O.S. After the cadets were let on board, Jeken persuaded his fellow classmates to use the opportunity to capture this highly-wanted rebel cell, but thanks to defecting cadet Reann's intervention, the attempt fails, but they are sent on their way back to the Empire.
- Ambition Is Evil: Knowing it could get them commended, Jeken persuades the others that this is the best option.
- Expy: Of Oleg. Both are condescending, self-serving jerks that serve as the Token Evil Teammate in their unit, in opposition to the Token Good Teammate that also receives equal attention (Oleg and Ezra, Jeken and Reann).
- Fantastic Racism: Believes that Stormtroopers are more superior than clones, a fact that he tries to rub into Rex's face.
- The Farmer and the Viper: How the story would've gone if Reann didn't save the day. Considering how meek the other cadets were and how Reann immediately took up the leadership position, the situation could've gone a lot better had Jeken not been there, though the Empire probably wouldn't think the same if they found out a rebel cell on their most wanted list could've been caught using that opportunity as a Trojan Horse than, say, some passing trader ship.
- Last-Name Basis: Konstantine refers to him as "Cadet Jeken" at the end, meaning that it's his last name.
- Smug Snake: As aforementioned, he smugly states to Rex that Stormtroopers are better than clones, and later, while he may have failed at capturing the crew thanks to Reann, he and the others get commended by Konstantine for their efforts and courage as well for Jeken in the line of duty, something he's more than glad to hear.
- Token Evil Teammate: Since everyone else minus Reann is a Bumbling Sidekick, they go ahead with his plan to betray the crew.
- Ungrateful Bastard: He persuades the other cadets to betray the crew for ambition, even though the alternative of them not getting saved would've meant death or worse. Also, considering his face at the beginning of the comic, it looks like a Complaining About Rescues They Don't Like type of facial response.
- Filia Rossi on the Imperial Navy page, graduated from the Imperial Academy on Raithal.
- Maketh Tua on the Lothal page, graduated from an unidentified Imperial Academy.
- TK-462 on the Lothal Imperial Garrison page, graduated from the Imperial Academy on Eriadu.
- Ved Foslo listed above under Imperial Cadets, graduated from the Royal Imperial Academy on Coruscant.
- Biggs Darklighter on the Red Squadron page, graduated from an unidentified Imperial Academy.
- Han Solo was expelled from the Imperial Academy on Carida after numerous acts of insubordination.
- Sabine Wren on the Crew of the Ghost page, ran away from the Imperial Academy on Mandalore under a charge of treason.
- Ketsu Onyo on the Bounty Hunters and Mercenaries page, ran away from the Imperial Academy on Mandalore.
- Zare Leonis on the Lothal page, washed out from the Imperial Academy on Arkanis under a charge of treason.
- Reann Tomvig on the Rebel Cells page, ran away from an unidentified Imperial Academy under a charge of treason.
- Beilert Valance on the Bounty Hunters and Mercenaries page, medically discharged from the Imperial Academy on Carida due to losing an eye and a leg to combat injuries.