Tropes associated with Eric:
- Abusive Parents: According to one of the Funpak shorts, his late father repeatedly spat on him.
- Acquired Situational Narcissism: After getting an action figure made of him in "Hello Dolly", Eric ends up letting his newfound popularity go to his head. It starts with him merely posing for photo shoots, and before the toys start attacking, Eric's soon wearing a crown, championship belt and has a polar bear holding him by the shoulders.
- Adaptational Attractiveness: When the original Funpak shorts were picked up for a full series, Eric was made cuter by virtue of the new visual style making him look less creepy. Compare this◊ to his picture here.
- All of the Other Reindeer: He's highly unpopular around Splitsboro, bullied and considered a Nerd by his classmates at school, and is generally a punching bag to everyone he meets, and even the friends he does have tend to turn on him.
- Beware the Nice Ones: He may be an doormat who's ultimately helpless to stop himself from suffering life's cruelties, but the rare times he's been evil portray him as a diabolical mastermind who happens to be capable of easily defeating anyone who gets in his way, only being prevented from doing so by his sheer bad luck.
- Bully Magnet: He's a favored punching bag for a lot of the other characters.
- Butt-Monkey: Some sort of terrible fate seems to befall him in every episode.
- Catchphrase: Whenever Kitty does something creepy that happens to be related to him, he says "What?", and she responds with the same.
- The Chew Toy: The universe seems to have it out for him, as he suffers some sort of horrible abuse or injury in almost every episode. He doesn't even get away on "Graduation Daze", as his accidentally destroying the diplomas leads to the school year resetting, and thus, the abuse starting again.
- Crouching Moron, Hidden Badass: He may be a Chew Toy of the highest order, but he's shown to be surprisingly resourceful and smart when the situation calls for it, like in "The Henchman Challenge" where he manages to get Master XOX's minions to destroy each other with their own tanks, and in "Halloweenie" where he uses his new clown powers to defeat the costume shop wizard.
- Conveniently an Orphan: His parents were killed in an amusement park accident.
- Cool Loser: You think a kid who's the sidekick of a famous superhero and can kick some serious butt at times would be popular and respected, right? Unfortunately, due to his horrible bad luck, he's the complete opposite.
- Dating Catwoman: With Mandy Struction, Member of the Splitsboro Crime Syndicate, The Mass Destructions.
- Depending on the Writer:
- His relationship with Vana. Though he's usually a Dogged Nice Guy who chooses to ignore her her faults, some episodes like "The Bogey Man" and "The Short List" depict the two as bitter rivals, with Eric doing all he can to get one up on her.
- How he responds to Kitty's advances tends to vary on whether he's oblivious or knows but doesn't return the sentiment.
- Dogged Nice Guy: To Vana, at least when they aren't competing against each other.
- The Eeyore: He can get pretty depressed whenever he talks about his life in the orphanage.
- Four-Philosophy Ensemble: The Realist.
- Gasshole: While definitely not as bad as Trevor, he has been shown burping and farting on occasions.
- Heterosexual Life-Partners: With Trevor.
- Jerk with a Heart of Gold: While prone to selfish and reckless actions (often as a result of Trevor's urgings), Eric is still generally a kind and friendly guy who really does want to do good, at least when compared to most of Splitsboro.
- The Leader: He's often the only one who can get Trevor, Vana and Kitty to work together on a common goal, and he generally takes the lead in their adventures as a result.
- Loser Protagonist: He's constantly subjected to abuse from the world around him, and he constantly loses even when he wins.
- Morality Chain: Played With in the case of Trevor. Eric's the only character who can rein Trevor in from his more impulsive decisions, and often prevents him from Jumping Off the Slippery Slope with their friendship on the line. However, Trevor's equally likely to just ignore Eric's objections and help Master XOX or do whatever else drifts into his mind, so it's not entirely foolproof.
- Naked People Are Funny: One common Running Gag is to have Eric get stripped down to his underwear, which inevitably turns out to be horribly embarrassing for him.
- Nerd Glasses: He wears glasses to showcase that he's geeky.
- No Guy Wants to Be Chased: It's implied the main reason he doesn't return Kitty's affections is because of her constantly stalking him and saying/doing things he finds uncomfortable.
- No Respect Guy: Almost nobody in Splitsboro aside from Kitty, Mandy and occasionally Trevor likes him.
- Oblivious to Love: Eric is completely oblivious to the fact that Kitty has a crush on him, although this is depending on the episode. In some episodes he IS aware of this but he's not interested in her.
- Raised by Robots: Maxum Brain is the closest thing to a parent he has.
- Secret Relationship: He's in a relationship with Mandy Struction, but since their families are on opposite ends of the morality spectrum, they're forced to keep it a secret.
- Something Else Also Rises: Both his and the giant robot Eric's noses rise up when they see a giant Vana robot in "Hello Dolly".
- Tiny Guy, Huge Girl: He's the 13 year-old Tiny Guy to the 15 year-old Mandy's Huge Girl.
- Undying Loyalty: To his adoptive parent/superhero, Maxum Man. He constantly cites Maxum Man's advice in dangerous situations, and often refuses to acknowledge anything wrong about him.
Tropes associated with Trevor:
- Alliterative Name: Trevor Troublemeyer.
- All Your Powers Combined: After getting cursed with the powers of his Maxum Man/Master XOX costume in "Halloweenie", Trevor finds out he has both characters' sets of abilities: Super Speed, Flight, and a wide arsenal of guns. Unfortunately, this comes at the expense of also developing both characters' personalities, and causing both sides of his body to start fighting each other.
- Anti-Hero: He's constantly changing sides, but even when he's technically a hero he's still extremely irresponsible and selfish.
- Bald of Awesome: While it tends to vary, Trevor's usually depicted as bald under his hat, though it doesn't stop him from being badass when he feels like it.
- Bald of Evil: On his more villainous days, he falls under this rather than Bald of Awesome.
- Big Eater: He'll eat anything, from spoiled salad to hog dogs infused with evil. It's best exemplified at the end of the opening theme: while Eric, Vana and Kitty strike fighting poses, Trevor's licking a plate.
- Big Fun: Though it's not immediately obvious that he's overweight unless he's in his underwear, on his better days he's a jolly, funny fat guy.
- The Big Guy: He's the largest of the main four, and also the oldest at 14.
- Chronic Backstabbing Disorder: He's perfectly happy to betray Eric if it means getting Master XOX's approval.
- Cloudcuckoolander: When he isn't being outright stupid, he exhibits some bizarre mannerisms, such as believing his deceased hamster's poop to be a sign of love or thinking the Henchman Challenge involves taking a bath with an ostrich, and that's without getting into his dream world.
- Crossdresser: Not normally, but during Kitty's daydream in "Maxum Man Mark 2" of her and Eric getting married, Trevor plays the bridesmaid with requisite pink dress.
- Cool Helmet: He wears a Pickelhaube helmet.
- Fat Bastard: On his worse days, he's a fat and selfish Jerkass who couldn't give a toss about anyone except himself.
- Fat Idiot: No matter what side he's on, Trevor is prone to making incredibly stupid decisions on the drop of a hat, and he's quite padded under his coat.
- Fat Slob: An obese teenager who is noted to have poor hygiene and is the main source of Toilet Humor.
- Four-Philosophy Ensemble: The Apathetic.
- French Jerk: He's French-Canadian descent, and in one episode, he took on a French accent for the sake of mocking Pamplemoose.
- Gag Lips: Giant, bulbous lips are just another of his silly facial features.
- Gag Nose: He possesses a long and silly-looking nose.
- Gasshole: The worst out of the cast.
- Gonk: He's not exactly attractive when compared to Eric's adorkableness, Kitty's cuteness or Vana's beauty, what with his long nose, bulbous lips and fat body.
- Goofy Print Underwear: He wears psychedelic blue underwear.
- The Hedonist: He couldn't give a crap about anything other than his own enjoyment, and on his worst days often resorts to destructive measures in order to get said enjoyment.
- HeelFace Revolving Door: He could be on the side of good with his best friend Eric... or he could be on the side of evil, trying to make Master XOX proud. It depends on how he feels at the time.
- Heterosexual Life-Partners: With Eric.
- Immune to Mind Control: Since he lacks a "Hypo-Smarticus" part in his brain, the Ga-Ga goggles don't affect him.
- Informed Flaw: According to the official website, he and Kitty apparently have a Friend Versus Lover rivalry regarding Eric. Not only does this not come up in the show itself, the two actually get along perfectly well.
- Iron Butt Monkey: While not as much as Eric, he tends to suffer a lot of slapstick, though it really affect him much, if at all.
- Jerkass: He (usually) doesn't give a toss about anybody other than himself.
- Jerk with a Heart of Gold: Trevor may be an utter Jerkass, but he can be surprisingly loyal to his friends: on his better days, he's perfectly happy to help his best friend Eric when he needs it, even when Trevor himself doesn't benefit in any way. He also really does, if begrudgingly, love his father Mr. Troublemeyer, even if he Can't Spit It Out.
- Meaningful Name: Troublemeyer sounds similar to "troublemaker", which describes Trevor in a nutshell.
- Missing Mom: His mother has never been seen in the series itself, though a Funpak short showed Mr. Troublemeyer hooking up with a woman that could be Trevor's mother in a flashback.
- Nice Hat: His Pickelhaube helm, of course. He loves it so much, he'll even wear it while swimming.
- Odd Friendship: When she's not being annoyed by his antics, Vana actually gets along quite well with Trevor, if their conversation while inside a giant monster in "A Monster Headache" is anything to go by.
- The Pig-Pen: He's been noted to stink badly by several characters, and he's often seen picking his nose, farting, pooping, belching and vomiting.
- Punny Name: His surname is a play on the term "troublemaker".
- The Slacker: Since he has no interest in being a sidekick to a hero, he's more interested in having fun and wasting time than doing anything productive.
- The Sociopath: He's prone to doing incredibly destructive and selfish things without remorse. He admits in "Shopping Spree" that he has no idea what guilt is.
- Token Evil Teammate: He wants to be a villain, in stark contrast to his friends' heroic aspirations.
- Who Even Needs a Brain?: Once, while playing with a blender, he stuck it inside his nose, which lead to his brain getting torn out, leaving him a drooling vegetable. He reverted back to normal by the next scene.
Tropes associated with Vana:
- Adaptation Dye-Job: She goes from a blonde in the Funpak shorts to a redhead in the TV series.
- All Girls Want Bad Boys: She falls head-over-heels for Eric's "Kid Ruthless" persona in "Identity Crisis".
- Boobs of Steel: Though it's Downplayed due to her age, she has small breasts and is naturally stronger than the completely-flat Kitty and Mandy, who both rely on technology instead.
- Broken Ace: She's tough, beautiful, and capable of mastering anything with ease. She's also a selfish Alpha Bitch who only cares about herself.
- Crossdresser: Not normally, but during Kitty's daydream in "Maxum Man Mark 2" of her and Eric getting married, Vana plays the best man with a fetching tuxedo.
- Defrosting Ice Queen: She actually does warm up to Eric (to an extent) as the show progresses, starting with the end of "The Bogey Man", where after the team manages to escape the titular villain's golf course, she actually hugs Eric, before she pushes him away a second later.
- Disappeared Dad: While her mother has been revealed to be a hippie, her father has never been seen.
- Four-Philosophy Ensemble: The Cynic.
- Handy Feet: Useful for kicking butts and tickling abrasive friends.
- Heroes Want Redheads: Both Eric and Evil Eric have a crush on her.
- Heterosexual Life-Partners: With Kitty.
- Jerk with a Heart of Gold: She may be a selfish prima donna, but on rare occasions she actually shows affection for Eric, Trevor and Kitty. Take the time she hugged Eric in "The Bogey Man", for example.
- Kiai: Any time she unleashes her fighting moves, each attack is likely to be accompanied with a shrill scream.
- The Lancer: While not considered the leader, she's by far the toughest of the group and she often butts heads with Eric as a result of her arrogance.
- Meaningful Name: Vana is vain and glamourous.
- Odd Friendship: When she's not being annoyed by his antics, she actually gets along quite well with Trevor, if their conversation while inside a giant monster in "A Monster Headache" is anything to go by.
- The Rival: Some episodes like "The Bogey Man" and "The Short List" depict her as one to Eric.
- Spared by the Adaptation: Vana actually choked to death in one of the Funpak shorts, though she reappeared completely fine in a later episode. Since the 2010 cartoon series was aimed towards a younger audience, this plotline was cut, and Vana actually survives the entire series.
- Sugar-and-Ice Personality: She's usually an utter jerk and a prima donna of epic proportions, but on rare occasions she'll show a kinder side to Kitty, Trevor and even Eric now and then.
- Tsundere: She's usually a major Jerkass, though there's the very rare moment of Ship Tease between her and Eric, ranging from their awkward hug in "The Bogey Man" to Vana admitting she'd have went out with Eric to the school dance if he asked in "This Hour Has 20,000 Minutes".
- Wacky Parent, Serious Child: There could not be a bigger difference between Vana and her mom.
Tropes associated with Kitty:
- Adaptational Attractiveness: She lost her pig-like nose and freckles, became less spindly, had her skin lightened up and gained tidier hair when the Funpak shorts◊ were picked up for a TV series, making her look much cuter.
- Adorkable: She's a Badass Bookworm who constantly fails to hide her glaringly obvious crush on Eric.
- Alliterative Name: Kitty Ko.
- All Asians Know Martial Arts
- Asian and Nerdy: She's Asian, and incredibly smart and good with technology.
- Berserk Button:
- Do not flirt with Eric unless you want to see her angry.
- Cats in danger are the only thing that can divert her attention away from Eric.
- Catchphrase: Whenever she does something disturbing that happens to be related to her crush, Eric, he says "What?", and she responds "What?" back.
- The Chick: Her kindness is generally the only thing that keeps Eric, Trevor and Vana from killing each other, though she also doubles as The Smart Girl as a result of her tech skills.
- Clingy Jealous Girl: If you're a girl, making any romantic advances towards Eric is likely to earn you her ire. Targets for her wrath include Vana (under the effects of the Ga-Ga goggles) and Mandy (who she would later warm up to).
- Conveniently an Orphan: It is unknown what happened to Kitty's real family but according to some fans, her family may have abandoned her when she was a baby or died either by being killed or of natural causes.
- Cool Loser: Very cute and smart, but not particularly popular.
- Dogged Nice Girl: To Eric.
- Fictional Disability: She has two left feet.
- Four-Philosophy Ensemble: The Optimist.
- Girl Posse: For Vana.
- Heterosexual Life-Partners: With Vana.
- Informed Flaw: According to the promotional materials, she apparently has a Friend Versus Lover rivalry with Trevor regarding Eric. Not only does this not come up in the show itself, the two actually get along perfectly well.
- Jerkass Ball: Despite having a crush on Eric and being one of the nicest characters in the series, she's perfectly happy to gang up on him with Trevor and Vana and is willing to insult, mock or even beat him up during those moments.
- Kindhearted Cat Lover: She loves cats and is one of the nicest characters in the show.
- Meaningful Name:
- She really, really likes cats.
- Her last name is a Chinese and Korean term for "high" referring to her high personality.
- Morality Chain: She plays this role for Eric in certain episodes like "The Henchman Challenge", where she disapproves of the team's cheating (despite their lack of other options) and manages to guilt-trip Eric into using proper strategies instead.
- Nice Girl: She's perhaps the nicest character in the show, Yandere-like obsession with Eric notwithstanding.
- The Smart Girl: She's the smartest of the group, and often aids the team with her own inventions.
- Stalker with a Crush: Her most defining trait is her obsession with Eric, though she's also chased after Joshua Sideburns and Alan Amazing whenever they show up.
- Yandere: She repeatedly tried to kill Mandy after discovering that she was dating Eric, though Mandy wound up having to save her when each trap backfired. She later warms up to Mandy, though she's still quite jealous regardless.
Maxum Man's computer, and the guardian of Eric while Maxim Man is gone.
Tropes associated with Maxum Brain:
- Abusive Parents: He's perfectly capable of being verbally abusive to Eric, such as telling him he was always meant to be a clown (Eric was dressed as one) in "Halloweenie" or revealing he had always wanted Vana to be Maxum Man's sidekick instead in "The Short List". He's also tried to kill Eric with his sawblade hands on more than one occasion.
- Big Good
- Bollywood Nerd: Maxum Brain has an Indian Accent.
- The Mentor
- The Smart Guy: On occasions where he's joined up with the main team, he often provides rational guidence as a result of being both a robot and the only adult.
- Surrounded by Idiots
The Super that adopted Eric and suddenly disappeared.
Tropes associated with Maxum Man:
- Purple Is Powerful: He wears a purple suit and is generally heavily associated with purple, and he was the most powerful person in Splitsboro before his disappearance.
- Smug Super
- Sociopathic Hero
- Steven Ulysses Perhero: Maxum Man's secret identity is Mr. Maxummin.
- Super Dickery
Golly Gee Kid
Maxum Man's former sidekick, who is now the school janitor.
The cruel-hearted headmaster of the Sidekick Academy, a teacher at said Academy, and arch nemesis of Trevor's father.
Tropes associated with Professor Pamplemoose:
- Evil Teacher
- Eyepatch of Power
- Gonk: He's an dishevelled old man with an Eyepatch of Power and green skin.
- Herr Doktor: As a parody of comic book villains, he speaks in a German accent.
- I Was Quite a Looker: One of the Funpak shorts revealed he actually used to be quite handsome in college before he and Mr. Troublemeyer fought over a woman (implied to be Trevor's Missing Mom). The resulting experiments cost Pamplemoose one of his eyes, one of his hands and both of his legs, and turned him bald.
- Mean Boss
- One of the Kids: He may be a Sadist Teacher, but he eats lunch at the same tables as the kids and is perfectly happy to celebrate the summer vacation with them.
- The Professor
- Sadist Teacher
The most popular and handsome student at the Sidekick Academy.
- The Ace: He's incredibly handsome, smart enough to build a device that brings inanimate objects to life, and perfectly capable of defeating a tyrannosaurus rex by himself.
- Always Someone Better: Acts as this to Eric, being smarter, older, more attractive, respected around Splitsboro, and capable of winning Vana's heart with ease.
- Attention Whore
- Chick Magnet: Vana, Kitty and hundreds of other girls all love him.
- Even the Guys Want Him: Even Trevor has a crush on him.
- Latin Lover
- Villainous Breakdown: After Eric manages to prove him wrong by getting an interview with a re-animated Maxum Man balloon, Alan goes crazy in an vain attempt to upstage him, arm-farting into the microphone and ripping off his shirt before running off-stage.
Mr. Troublemeyer/Master XOX
Trevor's dad turned super villain.
Tropes associated with the two:
- Archnemesis Dad
- Ax-Crazy: He's a sadist who revels in causing as much destruction and chaos as possible. Once, he made clones and then ate them.
- Big Bad: In the sense that he's the most persistent and regularly recurring villian.
- Even Evil Has Loved Ones: Mr. Troublemeyer/Master XOX tries constantly to be a good father. But Trevor makes it very hard to do so.
- Evil Parents Want Good Kids: Mr. Troublemeyer tries to keep Trevor from turning evil and even put him in the Sidekick Academy despite reacting in disgust when that school is even mentioned. Of course, Master XOX is always proud that Trevor inherited his evilness.
- I'm a Humanitarian: He once created and then ate several clones.
- Literal Split Personality: Master XOX and Mr. Troublemeyer are shown as separate individuals near the end of "Four's A Crowd", though there's no explanation given as to why.
- Loves My Alter Ego: Trevor idolizes XOX, but seems to hold nothing but contempt for XOX's civilian identity: his dad.
- Sitcom Arch-Nemesis
- Split Personality: The psychotic Master XOX and the milquetoast Mr. Troublemeyer.
A unicorn-like creature who made Eric look like a fool in a school play.
Tropes associated with Drillum Shakesbread:
The youngest member of "The Destructions", a family of villains (later anti-heroes). She has feelings for Eric, but her parents forbid her from pursuing relationships with Good Guys.
- Dating Catwoman: With Eric.
- Dishing Out Dirt: Seeing as how she can cause earthquakes by merely stomping her feet, yeah, she fits this trope.
- Huge Schoolgirl: She towers over everyone else in the cast.
- Mixed Ancestry: She is half Italian and Persian.
- Nice Girl: One of the few decent characters for Eric.
- Punny Name: Man-Destruction.
- Star-Crossed Lovers: With Eric.
- Third-Option Love Interest: To Eric.
- Tiny Guy, Huge Girl: The Huge Girl to Eric's Tiny Guy.
- Token Good Teammate: Compared to her family, as while they're villains, she's an Anti-Hero who's comfortable doing both heroic and villainous acts and happens to be a Nice Girl when off the clock.
A Sidefu master that made Eric look like a fool in a Sidefu tournament.
Tropes associated with Sensei Jimmy:
- The Dragon
- Killed Offscreen: According to Eric's in-character YouTube channel, Jimmy died of old age at some point after his debut in "Everybody is Side-Fu Fighting", explaining why he has made no subsequent appearances since then.
- One-Shot Character: Only had one appearance.
- Those Two Bad Guys: With Pamplemoose.