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The Main Trio
Princess Ilana/Ilana "Lunis"
Voiced by Tara StrongThe princess of the planet Galaluna, Ilana is sent to Earth alongside Lance and Octus for her protection against Modula's forces, disguising themselves as students in Sherman High School. She is compassionate and well-intentioned, but her naivety of human ways causes the student body to label her a "doofus." Ilana and her armor system Corus is the "heart" of the Sym-Bionic Titan.
- Anime Hair: Seriously, how does her hair manage to stay up like that? And from the looks of her dad, it apparently runs in the family. The one time you actually get to see her hair down is very briefly when the cheerleaders and she fall into the school pool. Cut to the next scene, and her hair is automatically back up again. The hairstyle appears to be a Galalunian cultural thing. Baron in episode 8 has this hairstyle as well, as do several Galalunian background characters.
- Barrier Warrior: Corus, her armor system, is equipped with force fields.
- Beauty Is Never Tarnished: Strongly averted in Episode 13, then again briefly at the beginning of Episode 16 when she gets herself dirty from climbing down a well.
- Episode 19 shows that shes doesn't always look so fantastic in the mornings.
- Body Horror: Happens during episode 13, "The Demon Within". The burns from her injury look gruesome, but the transformation sequences are quite a bit more graphic, going to the point of showing Ilana, still technically thinking and acting as herself, seeing her reflection in a puddle, and discovering that part of her head has opened to reveal her brain.
- Chest Blaster: Her armor fires blasts from her chest.
- Chronic Hero Syndrome: Has a compulsive need to help people in trouble. Sometimes it's a good thing, other times it's not.
- Closer to Earth: She is quicker to accept human lifestyles and customs than Lance and Octus.
- Cool Loser: Most of her classmates either ignore her or make fun of her.
- Daddy's Girl: She loves her father so much that seeing an illusion of him dead causes an emotional breakdown.
- Enemy Scan: Done in episode 3, "Elephant Logic", on the mysterious, gaseous blob that's destroying everything, then on the dragon monster.
- Fallen Princess: She was a princess in her home town but now she's one student among many.
- Fish out of Water: She's out of her depth at an earth high school.
- Fragile Speedster: Her Corus armor seems to be like this, yet it's sturdy enough to survive a falling building and a stomping from a false Manus unit unscathed.
- Frickin' Laser Beams: Corus can shoot a beam capable of destroying anything. This gets shown off in episode 11.
- Go-Getter Girl: She joined the Homecoming Committee and was quickly elected The Leader.
- Gold Makes Everything Shiny: Her armor is shiny and golden.
- Graceful Ladies Like Purple: Her princess dress in the intro; significant because she doesn't wear princess clothes again.
- Granola Girl / Hippie Chick: Appears as one because of her overtly friendliness and peace-loving nature, but this is just as a result of her being a princess.
- The Heart: Both metaphorically and literally, since she helps keep the team together and her armor forms the heart of the Titan.
- Love Freak: Resulting in considerable mockery from her classmates.
- Magic Skirt: Whenever she wears a skirt it always stays down.
- Missing Mom: There's been no mention of her mother so far, and the one possible cameo of her is questionable.
- Out of Focus: The unfortunate side effect of the series getting cancelled so soon; Lance was the focus of the first half of Season 1 and Octus was the focus of the second.
- Plucky Girl: Constantly upbeat; a great contrast with moody Lance.
- The Pollyanna: Definitely the most upbeat and optimistic member of the group.
- Powered Armor: Her Corus unit is like this and is only slightly larger than an adult human by a foot or so.
- Princesses Prefer Pink: A fair portion of her outfits consist of either pink or purple. Even the screens inside her armor are pink.
- Protectorate: It is Lance and Octus' responsibility to ensure her well-being.
- Royals Who Actually Do Something: When Galaluna was at peace, she did a lot of diplomatic and humanitarian work, as well as copious rescues of trapped-in-a-well pets.
- The Kirk: The "Heart" in the Galanuian trinity of heart, body, and mind.
- Spell My Name with an "S": The official spelling of her name is I-L-A-N-A, but some spell it as Illana or Elana.
- Spock Speak: Similar to that of Starfire (even though she's voiced by Raven). This lasts for only the first few episodes because she has to blend in..
- Spoiled Sweet: Ilana is obviously used to the finer things in life, but she doesn't let that get in the way of saving the day when evil rears its head oh-so-often. In fact, in a way, it makes her more suited to it.
- Unlimited Wardrobe: She's worn four different outfits in a single episode.
- Youthful Freckles: She's a young girl with freckles.
- Zettai Ryouiki: A marvelous Class B, Class A in other shots. This is her sense of fashion.
Corporal Lance / Lance "Lunis"
Voiced by Kevin Thoms; as a child by Elan Garfias (in "Shaman of Fear") and John DeVito (in "Shadows of Youth").A Galalunian soldier and Ilana's bodyguard. Lance is labeled as a "bad boy" at school when he unintentionally draws all the girls' attention. He is not one to back out of a fight and is very protective of Ilana, easily mistaking anything as a threat to her. Lance and his armor system Manus is the "body" of the Sym-Bionic Titan.
- Alliterative Name: His Secret Identity name — Lance "Lunis".
- Badass Angster: He has just as much angst as said famous crimefighter too, including the dead parents!
- Badass Driver: Just look at what he does in episode 5.
- Beauty Is Never Tarnished: Averted in the rather Squick-inducing interrogation Xishi pulls on him and when the audience clearly sees him get bruised for good measure by the G3 interrogator.
- The Big Guy: He's a soldier among a princess and a robot.
- Brains and Brawn: Brawn to Octus' Brains.
- Captain Ersatz: He's Hyato Jin, right down to the hairstyle. Specifically, the aloof but chivalrous Hyato Jin of the 1970s anime, as opposed to the violent psychopath from the manga and Darker and Edgier later anime.
- Chick Magnet: Every girl at school worships the ground he walks on, but he can't work up the nerve to pursue the one he actually likes. The one time he asked she turned him down, but that was more because of his choice of locale rather than denying him personally.
- Chronic Hero Syndrome: Not as much as Ilana, but he does state in episode 4 that fighting crime makes him feel like he has a purpose.
- Curtains Match the Window: Black hair and eyes.
- Dark and Troubled Past: "Shadows of Youth" deals entirely with his unpleasant childhood as an orphan in military school.
- Declaration of Protection: To Ilana. He takes his job very seriously.
- Defrosting Ice King: Over the course of the show, he becomes less of a hardass.
- Distressed Dude: A couple times he needs rescuing.
- Fish out of Water: In his own sort of way, especially when he considers anyone who so much as lays a hand on Ilana as an enemy.
- Geeky Turn-On: Mike Chan's car causes his "circuits to pulse."
- Good Feels Good: His brief stint as 'The Shadow', a vigilante, is the only time he's been happy. He smiled and said 'good morning' and everything.
- Good Is Not Nice
- Heroic Vow: His vow is to protect Ilana from whatever may endanger her.
- Hidden Depths:Ilana: Why do you think my father chose somebody so...strange?
Octus: Maybe your father sees something in him that none of us do.
- Hot-Blooded: Complete with Hot-Blooded Sideburns.
- Idiot Hair: Far from being an idiot, though.
- Instant Expert: He manages to learn to play guitar over the space of a couple days.
- Jerk with a Heart of Gold: He can be pretty intense when it comes to protecting Ilana, evidently shown in the second episode, but he's well-intentioned and will try to make up for his wrongs — such as destroying the robot that he accidentally led back to the neighborhood and getting Ilana the snow globe she was admiring from the furniture store.
- The Lancer: Doubles as Meaningful Name; he's a contrast to Ilana and he's a soldier too.
- Le Parkour: Judging by his chasing-down of Ilana when she wanted to go to the mall, he's pretty good at it.
- Long-Haired Pretty Boy
- The McCoy: The "Body" in the Galalunian trio of heart, body, and mind.
- Meaningful Name: His armor wields a lance and is The Lancer. Reversed, it means an actual rank.
- Missing Mom: As with Ilana, the issue's never really brought up.
- Mighty Glacier: Manus, his armor system, may not be the fastest, but it is still very strong.
- Mr. Fanservice: Perhaps best exemplified with the Shirtless Scene in the third episode and lampshaded in the fourth episode:
- Nice Job Breaking It, Hero!: Lance has more than once made a mess due to his insensitivity and quick-tempered nature.
- One-Man Army: The Galaluna Military thinks he's enough to turn the tide of the war they've already lost.
- Punny Name: Well, name-and-title. "Lance corporal" is a military rank. Also, it's a lower rank than corporal, which means that Lance most likely was "Lance Corporal Lance" at some point.
- Self-Made Man: He had some support from the king and General Modula, but other than that he was on his own.
- Shirtless Scene: So far, he's had more fanservice than Ilana!
- Shrinking Violet: If "Disenfranchised" was any indication, he doesn't like being the center of attention and shrinks away at Ilana's accidental announcement of his playing in a band.
- Sour Supporter: On his worse days to Ilana, he reluctantly goes along with her ideas when he dissents with her.
- Spock Speak: He averts this more than Ilana and Octus do. Of course, he interacts with people less as well...
- Tall, Dark, and Handsome: 6'0'' and 152 lbs, according to his license.
- Troubled, but Cute: A source of popularity at school.
- The Unsmile: His drivers license picture is...something.◊
- You're Popular, So You Suck: Invoked; he had a short lived tenure in a band, only to be fired because he was too "mainstream".
Octus / Newton / Mr. Lunis
Voiced by Brian PosehnA bio-cyberneric robot sent alongside Ilana and Lance. Octus's hologram disguises include "Newton" when he's in Sherman High School; and Ilana's and Lance's "Dad" outside of school. He is intelligent, but is considered a nerd by Sherman High School students. Octus is the "mind" of the Sym-Bionic Titan.
- Adorkable: Well, he is trying his best to fit in with others.
- Awesomeness by Analysis: In a mundane way. He's able to out-chug and out-belch Meat simply by observing how Meat did it and one-upping him.
- Badass Bookworm: He's the most intellectual of the three main characters and is also perfectly capable of taking out the Mutraddi beasts.
- Big Eater: Just how many of those Popsicles did he eat in one sitting?
- Brains and Brawn: Brains to Lance's Brawn.
- Calling Your Bathroom Breaks: Regularly uses this excuse to get out of class/leave a party/etc. in order to fight evil and save the world.
- Came Back Strong: Is brought back to life by the head of G3 in the series finale. Not only can Titan be formed again, its power increased greatly along with having gained the ability to fire powerful energy beams from its limbs.
- Character Development: Out of the protagonists, he got the lions' share of it; in the first few episodes, he's fairly singular-minded about protecting Ilana and keeping their presence on Earth a secret. After Kimmy becomes his girlfriend, he becomes more emotive and heroic, even agreeing with Ilana on helping Solomon.
- The Comically Serious: He pulls off a lot of witty one-liners without trying, and when he does try to make jokes, they're so nerdy that no one else gets them. If he's in a bad mood, he can become a Deadpan Snarker.
- Do Androids Dream?: A question commonly brought up in the series is whether he qualifies as a person or just a machine.
- Do-Anything Robot: So far, Octus has been very versatile. He can generate solid cash (and other objects) by converting it directly from energy. This may be the same matter-replicators used to make the Titan's weapons.
- Eating Machine: To go with the Big Eater trope above, and not only that, but Octus is capable of tasting consumables as well. Since most of his body is a shaped fluid that can analyze whatever is put in it.
- Emergent Human: He's definitely not a human but, he's not just a robot either. This is examined in "I Am Octus".
- Flying Brick: Not only can he fly, he can get hit by a truck on the freeway without being hurt. The truck crumbles from the impact, while Octus doesn't even flinch.
- Genius Bruiser: He could probably beat Lance in a fight if he wanted to.
- Heroes Want Redheads: With Kimmy, though she seemed to be attracted to him first.
- Heroic Sacrifice: The end of episode 18. He recovers.
- Nerd: His high school disguise is the stereotypical glasses and too-formal clothing. He averts the social stigma because he ends up with a Jock friend and Kimmy as a girlfriend. He seems to be growing in popularity off-screen, too — his contacts list in "Shaman of Fear" has at least 10 names on it besides "Ilana" and "LANCE".
- Huge Guy, Tiny Girl: He's a lot bigger than Kimmy.
- Let's Get Dangerous!: The gloves are off when he sheds his disguise.
- Lightning Bruiser: In addition to being able to move faster than the human eye can see, Octus is also strong enough to punch monsters through walls with relative ease.
- The Masquerade Will Kill Your Dating Life: In "Under the Three Moons" it did because Kim didn't like he kept ditching her.
- Master of Disguise: But he frankly doesn't put that much effort into it when we know for a fact he could. Aside from the fact that his bulk never changes, his "dad" persona is essentially his "student" aged up appropriately. He's shown the ability to alter his appearance into a much thinner form, so apparently he just doesn't feel like it.
- Mundane Utility: Octus is super-strong and super-fast, and will use all his might and skill to... throw snowballs.
- Mysterious Past: Exactly how he came to be isn't entirely clear. We at least know Ilana's father was doing some touch-up work just prior to the invasion, but that's it.
- Not Distracted by the Sexy: Kimmy's dance in "Lessons in Love" fails to convince Newton to do her homework for her.
- Opposites Attract: Newton developed a completely unexpected romance with the not-so-ditzy sexpot cheerleader, Kimmy.
- Papa Wolf: To Lance and Ilana. For extra points, one of his two disguises is their father.
- Protagonist-Centered Morality: Octus is the most guilty of this out of the three, which makes sense because his programming dictates Ilana be protected first and foremost. He doesn't want Lance stopping crimes only because it attracts undue attention, and was perfectly fine with Lance driving a car without a license (and would have made him one if asked).
By the events of "A Family Crisis" he seems to have moved past this mindset, agreeing with Ilana to respond to Solomon's distress call as it is the right thing to do, much to Lance's annoyance.
- Ridiculously Human Robots: Octus has made the point several times that he's not an average robot whenever this issue comes up.
- Robot Buddy: Although Ilana and Lance don't seem to see him like this.
- Secret Identity: He has TWO of them; Newton and 'Dad' Lunis. How Newton fits into the Lunis family is highly ambiguous.
- She Is Not My Girlfriend: He says this exact line when Lance teases him about Kimmy in "Lessons in Love". Then he ends up kissing her and they've been dating ever since.
- Sizeshifter: An extension of his shapeshifting ability, allowing him to grow to giant proportions. The team probably couldn't form Titan if he didn't have this power.
- The Smart Guy: He is the brains of the trio.
- The Spock: The "Mind" in the Galalunian trio of heart, body, and mind. He does gradually gain emotions, but he still fits this role since Ilana is still the more emotionally motivated.
- Spock Speak: He gradually begins to take on human speech affections, to varying levels of success.Octus: I know, right? (said without any intonation)
- Sugar-and-Ice Personality: He does have feelings, they just take a while to surface.
- Super Speed: Octus displays this in Episode 6, going fast enough to be invisible to the naked eye and whip up a strong breeze, yet not fast enough to cause a sonic boom. He doesn't even have to move his upper-body to boot.
- Team Chef: He seems to be the only one in the group who knows how to cook.
- Team Dad: In the literal sense, as he disguises himself as the team's father at home. Plays the trope straight, too.
- Tin Man: In "I Am Octus." It was inevitable, really.
- Unexplained Recovery: After spending episode 19 dead, he's brought back to life by the head of G3 in episode 20 and this is his explanation.
- Voluntary Shapeshifting: Overlaps with Master of Disguise and Sizeshifter.
- What Is This Thing You Call "Love"?: Averted- he understands the concept but doesn't feel it with Kimmy (initially). Instead, he feels 'happy' around her (sounding more like an unusually self-aware teenager than a robot).
- Younger Than They Look: He was actually first activated shortly before Lance and Ilana left Galaluna, so he's technically less than a year old.
People of Galaluna
Voiced by Don LeslieThe driving force that caused Lance, Ilana, and Octus to flee Galaluna, Modula is a sort of dictator who controls a group of aliens called the Mutraddi. Because he is too busy conquering Galaluna for himself, Modula sends a giant monster every so often to kill the princess and stop any possibility of rebellion against him.
- Authority Equals Asskicking: One episode displays him putting down a rebellion platoon using nothing more than his bare hands without really trying. Counts during his pre-Big Bad days, too: he deactivated two Manus armors standing upright by himself in an instant.
- Badass Beard: Just look at that thing.
- Bad Boss: He doesn't take failure very well. One of his lackeys even learned the hard way not to wager your life on a Mutraddi's success.
- Big Bad: He serves as the show's main villain, since he's brought Galaluna to ruin with the aid of the Mutraddi beasts and concentrates a fair portion of his efforts on sending Mutraddi to eliminate Lance, Ilana, and Octus.
- Evil Former Friend: He used to be the King's closest friend before going rogue.
- Evil Sounds Deep: Has the deepest voice in the series.
- Eye Beams: His helmet-eye shoots mind-reading beams and disintegration rays.
- Eyeless Face: His hat conceals his eyes, though it actually has an eye on it itself.
- Face–Heel Turn: We don't know the details yet, but he used to be one of the good guys.
- Fallen Hero: He used to be a pillar of the community to Galaluna, but is now leading the Mutraddi into razing the planet.
- Hive Queen: A male example. Seems to play this role to the otherwise mindless Mutraddi.
- Knight of Cerebus: Any scene he appears in, the series gets darker. He has no comedic moments, nor sense of humor.
- Nice Hat: Which also lets him talk to the monsters he sends to Earth.
- Psychic Powers: He controls the Mutraddi.
- Out of Focus: In the second half of the series he appears in only one episode.
- Reasonable Authority Figure: Before his Face–Heel Turn, he was a very agreeable guy.
- Roaring Rampage of Revenge: His whole motive seems to be to get revenge on the King for abandoning him on the Mutraddi homeworld.
- You Have Failed Me: He tends to kill any underlings that let him down.
King of Galaluna
Voiced by John DiMaggioThe King of Galaluna and Ilana's father. Being held hostage by Modula.
- Badass Beard: He has a large beard.
- Distressed Dude: He is held prisoner by Modula.
- Parental Substitute: At times he is something of a surrogate father to Lance following the apparent death of Lance's real father.
- Royals Who Actually Do Something: He actually makes an effort to fight against the Mutraddi.
- We Used to Be Friends: He and Modula were friends before Modula led the Mutraddi into causing severe destruction towards Galaluna.
Voiced by: Richard McGonagleLance's missing father.
- Badass Mustache: He has a big mustache.
- Disappeared Dad: Vanished through a prototype rift gate and is presumed dead. Though when he was a kid, he believed he's still alive. He always hoped he would come back and take him home, but after his terrible first year at the military academy, he accepted that he's dead.Lance: With all due respect, you're not my father.
The King: You're right, I'm not your father. But if he were here—
Lance: He's not here! He's dead, and he's never coming back.
- Expy: Of Dr. Nambu.
- Never Found the Body: His apparent death doesn't leave any traces of a corpse.
- When You Coming Home, Dad?: He wasn't always there for Lance.
Voiced by: Austin MincksA former classmate of Lance.
- The Bully: He picks on Lance and his roommate Arthur.
- Establishing Character Moment: The moment he appears onscreen, he is shown to be a Jerkass who makes cracks about Lance's dad and beats him to the ground with his cronies with Lance not fighting back even after he punches him in the face.
- Hate Sink: There is nothing to like about this kid. He constantly bullies Lance through the school year, insensitively makes cracks about his deceased father on purpose, gets him in trouble, turns his roommate against him, and even gets off scot-free for trying to kill Lance, thus ruining his life. There are no redeeming qualities for him whatsoever. These qualities make him the most detestable character in the series overall.
- Jerkass: Every single thing he does to Lance is extremely assholish. He picks on him, he gets him into trouble, he even has the gall to make insensitive remarks about his father being deceased.
- Jerk Jock: He picks on everyone he sees as weak.
- Karma Houdini: He tries to murder Lance because Lance beat him in the war games. When Lance steals the Manus armor to try and scare him off, he takes another and they get into a mecha duel which blows up a good chunk of the academy. While Baron receives relatively minor punishment for the fight (as does Lance), he was apparently never even charged for the unprovoked attack beforehand.
- Kids Are Cruel: As if his bullying and getting Lance into trouble wasn't enough, he also makes insensitive remarks about Lance's deceased father.
- Smug Snake: He's quite the self-centered bastard.
- The Rival: To Lance.
- Villain with Good Publicity: He is well-liked by his peers and does not get punished for his actions by his superiors.
Voiced by: Vanessa MarshallOne of the Mutraddi sent by Modula.
- Baddie Flattery: When he tastes some Galalunan cuisine during a scuffle. "Good fu-fu..."
- Body Horror: See Orifice Invasion.
- Monster of the Week: Only appeared as the antagonist of one episode.
- My Death Is Only The Beginning: Before getting crushed by the Titan, Xeexi manages to record their battle and send said recording to his master, making Modula aware of the Titan's existence.
- Orifice Invasion: He forces himself down his victims' throats to make them speak.
- Spell My Name with an "S": Some mispell it, often as "Xishi."
- We Hardly Knew Ye: He only appears in the episode where he gets crushed by Titan shortly after sending a probe to Modula.
People of Earth
Voiced by Tim RussAn enigmatic individual affiliated with a group known as the Galactic Guardians. His ambitions, motivation, and alignment remain to be seen, although to date he has typically served only to play as the voice of reason against the heavy-handed tactics of General Steel. Both his fighting style and the technology he uses are Galalunian in origin, a mystery that has yet to be explained.
- Badass Longcoat: He wears a long coat and is a very competent and formidable individual.
- Dark Is Not Evil: He dresses in black, but ends up helping out Lance and Ilana.
- Heel–Face Turn: After the heroes save him from the Energy Creature, he's more than willing to return the favor and help them.
- Hidden Agenda Villain: If he is a villain. He might be more of an Enigmatic Minion, since he's actually working for someone else.
- Inspector Javert: Solomon is deeply suspicious of whoever controls the Titan.
- Nice Hat: His whole wardrobe, really. Brings to mind a certain vampire...
- The Stoic: Typically very cool and reserved, and to date hasn't been seen to express any emotion particularly strongly. He's Not So Stoic as to pass up the occasional deadpan snark at General Steel's expense, however, or to crack a smile at a children's song about teamwork being played from the speakers of a giant robot.
General Julius Steel
Voiced by John DiMaggioA decorated military officer whose unit is the first to encounter Ilana and Lance after their decent to Earth. He has deep contempt for the Titan once it becomes known, and openly encourages people to assume it to be a menace. He's also stubborn as a mule, refuses to listen to the advice of his subordinates, and never takes responsibility for his mistakes. Openly detests Solomon.
- BFG: His mecha is armed with a large number of these. But the one it uses as a Finishing Move is connected to its arm and can completely vaporize a giant monster in one blast.
- Chronic Hero Syndrome: His speech during the televised debate over whether the Titan is a friend or a menace hints that part of the reason he so strongly detests the Titan is that people consider it a hero, and not people like him.
- Destructive Savior: To the point that you really have to wonder if he qualifies for the "savior" part.
- Determinator: In the last fight he was in, he used his mech's full power to blast the monster. When that didn't work, and the arms were ripped off, he continued with a missile salvo (wasn't that effective), when the robot was torn apart and smashed. Steele got out and began shooting at the monster himself, with a handgun.
- Enemy Mine: The series ends with him begrudgingly assisting Solomon, Lance, Ilana, and Octus in taking out the latest Mutraddi attack.
- Expy: He's very similar to General Thaddeus E. "Thunderbolt" Ross from the Incredible Hulk, being a seasoned general with an irrational hostility toward the heroes.
- General Ripper: Steel's violent obsession to stop any aliens tends to endanger his men and everyone around him. Shows during his mecha's first battle. His fighting style is far more agressive than the Titan's and tends to cause a great deal of damage.
- Good Is Not Nice: He's not really evil, and takes his job as a soldier seriously... but he's probably the least pleasant earthling we've seen in the series so far.
- Harmless Villain: Starting to fall into this, especially compared to Solomon and Modula.
- Not-So-Harmless Villain: Not anymore, he finally decided to even the playing field and get himself his own giant robot, The Hammer.
- Jerkass: The way he treats subordinates who disagree with him is a little less than reasonable, he also acts very rude toward Solomon.
- Large Ham: When the H.M.E.R first appears, he chews up more scenery than the monster he's fighting.
- More Dakka: His solution to most problems is finding a bigger gun to fire at it. This has come back to bite him on the butt at least once so far. His own personal mecha, the H.M.E.R, is this trope. It's packed with an ungodly amount of guns and weapons.
- Nice Job Breaking It, Hero!: His actions are what result in episode 3's Monster of the Week.
- Took a Level in Badass: Once he gets a giant robot of his own, he successfully takes out a Mutraddi.
Voiced by Kari Wahlgren, Cassie Scerbo in "Showdown at Sherman High"The captain of Sherman High's cheer squad. When she is first introduced she behaves like a stereotypical mean and shallow popular girl, but it's really all just an act. She first reveals her true nature to Newton and, to everyone's surprise, falls in love with him. The two have been dating ever since and so far she has no idea that he's really a robot. She is similarly oblivious to Lance and Ilana's secret identities, though their behavior makes her suspicious at times.
- Brainless Beauty: Greatly deconstructed; Kimmy has very little confidence (initially) of her intelligence because people see her as this trope, and a good talk with Octus helps her realize that she didn't need to follow the stereotype.
- The Cheerleader / Alpha Bitch: Prior to Character Development, she was a shallow and snobby bitch.
- Defrosting Ice Queen: Her study session with Octus helps her become a more reasonable and likable person.
- Fiery Redhead: She can be even feistier than Ilana!
- Give Geeks a Chance: She does by starting a relationship with Octus' Newton persona and attempts to explain his appeal to her friends.
- Hidden Depths: There's more going on behind that pretty face than you'd think.
- Impossible Hourglass Figure: She's got plenty of curves and evidently likes to show them off.
- Jerk with a Heart of Gold: She softens up enough to help Ilana save the school but her attitude doesn't fully change until Newton gets through to her.
- Lovable Alpha Bitch: She mellowed out once she hooked up with Newton.
- Ms. Fanservice: Dresses provocatively and shows it off.
- Obfuscating Stupidity: Reveals to Newton that she believed she's a ditzy airhead because society says so. He convinces her otherwise, and is indeed much brighter than she realized.
- Shaking the Rump: She's especially stacked in the back and is not ashamed of it. She shakes her posterior to try and entice Octus to do her homework for her.
- Single Woman Seeks Good Man: Kimmy falls for Octus/Newton after he inspires her to better herself and not to listen to other people's perceptions of her.
- Stepford Smiler: She turns out to be more distressed on the inside than she's led on.
- Tsundere: She seems to go back and forth between both types.
Voiced by: Will FriedleA fellow classmate of the Lunis family at Sherman High, Ilana first meets him at the Ballad of Scary Marry trying to open a soda bottle. They hung out more often after that but their relation is up in the air after she stood him up at the homecoming dance during Under The Three Moons.
Voiced by: James Arnold TaylorAnother student bad boy attending Sherman High and is the amicable-EX of Kimmy Mysner. He comes off as a bruiser and a himbo which is coined by Kimmy's girl friends but shows a bitter jealousy towards Newton fro stealing his girl in Chase's mind. Admittedly he might not've been the most sincere boyfriend he thought he was to her.
- Attention Whore: He's constantly trying yo get attention from Kimmy.
- Jerk Jock: He's macho and arrogant.
- Never Live It Down: In-Universe. Still pretty strung up about the break up.
- Operation: Jealousy: He tries to get Kimmy jealous by dating other girls.
Voiced by: Vanessa Marshall
- Action Girl: Practices martial arts similar to Lance.
- Alone in a Crowd: In "Ballad of Scary Mary."
- Aloof Dark-Haired Girl: A dark-haired girl who doesn't socialize much.
- All There in the Script: She's not referred to by name in her in-show appearances, but the credits list her as Kristin.
- Distaff Counterpart: She's like a female Lance.
- Goth: She's dark and moody.
- Ineffectual Loner: She doesn't open up to anyone but Lance.
Edwin "Meat" Kapinski
Voiced by Bill Fagerbakke
- Big Fun: A huge and fun-loving guy.
- Dumb Is Good: He may not be too bright, but he's not a bad person.
- Dumb Jock: He shows signs of being athletically inclined, but is also really dumb.
- Dumb Muscle: He's strong and not very smart.
- Expy: He has a lot in common with Moose Mason from Archie Comics, both being dumb and brawny high schoolers with soft hearts.
- Gasshole: Based on his burping talents.
- No Sense of Personal Space: He sometimes gets too close to Octus for his comfort.
- Odd Friendship: He gets along rather well with Octus' Newton persona, considering he's far more intelligent than him.
- Too Dumb to Live: How dumb is this guy? So dumb that he drinks stuff in science labs. He once asked Octus what he'd give to see him drink formaldehyde.
Voiced by: Audrey Wasilewski
Steve "Babyface" Stevens
Voiced by: Bill Fagerbakke
- Adults Dressed as Children: He dresses like a high-schooler as his cover.
- Expy: Looks a lot like Archie Andrews.
- Older Than They Look: He was able to sneak into the high school because he was an adult who looked like a teenager. His youthful appearance is also said to be where he got his nickname from.
- Action Bomb: Tashy is a living explosive designed to detonate the instant it dies.
- Cuteness Proximity: Has this effect on Lance, who lightens up enough to gush over how adorable it is.
- Earth-Shattering Kaboom: Tashy is a living bomb powerful enough to destroy a whole planet upon detonation.
- Killed Off for Real: Destroyed for good after it blew up in space.
- Killer Rabbit: Tashy may be cute, but it's still able to cause a planet-destroying explosion upon death.
- Leitmotif: It has a distinct theme music remixed three times throughout the episode, the first two to reflect who is spending time with it (Ilana getting a cute and bubbly tune, Lance getting a rock theme), the last being a somber version of the song done on guitar.
- Ridiculously Cute Critter: Tashy is a very adorable alien.
Voiced by: John DiMaggioAnother Mutraddi sent to capture Ilana.
- All There in the Manual: His name is never spoken in the episode, but is shown in the credits.
- Body Horror: His chest is transparent, which shows his heart. His brain is even shown.
- Bounty Hunter: Seems to be this since he claims he has done this before.
- Extra Eyes: On his lower jaw.
- Impaled with Extreme Prejudice: Gets impaled by the Manus armor through the chest.
- Killed Off for Real: He is stabbed through by Lance when he tries to escape, breaking his Psychic Link with Ilana.
- Monster of the Week: Only appears in one episode that takes place in a swamp.
- Our Werebeasts Are Different: Anyone or anything he touches with his tongue gets turned into a Mutraddi. The only way to turn them back to normal is by killing Muculox.
- Psychic Link: Does this with Ilana by croaking.
- Suddenly Voiced: Spends a lot of time roaring until he speaks in the third act.