Arthur "Art" Mathews
- Accidental Pervert: Is actually this about 90% of the time.
- All Men Are Perverts: Not as much or as loudly as Pip, though.
- Deadpan Snarker
- Only Sane Man: When he's not succumbing to Not So Above It All tendencies.
- Only Known by Their Nickname: His actual name is Arthur Mathews, but most people just call him Art.
- Token Human
- Walking Techbane: Technology explodes in his presence.
Kathleen "Kat" Vance
- Beware the Nice Ones
- Brainy Brunette: Colorations of her depict her with light brown fur/hair.
- Cat Girl: Somewhat less humanoid than the classic Japanese version, but still essentially a woman with cat ears and tail.
- Covert Pervert
- Deadpan Snarker
- Furry Reminder: Generally she acts like a human, but she does have a problem resisting dangled yarn. And she once brought Art a dead bird as a 'gift'.
- Gamer Chick: Loves her Street Fighter.
- Genki Girl: At times.
- Hard-Drinking Party Girl: Played with. Only seen to drink on holidays, and when she does, she inevitably ends up with a horrendous hangover.
- Plucky Girl
- Tsundere: She's rather moody but generally nice.
Phillip "Pip" McGraw
- All Men Are Perverts: So much so that he apparently has hidden cameras in the house for when the sexual tension between Art and Kat finally reaches its breaking point.
- Break the Cutie: What Hilary did to him.
- Everything's Better with Penguins
- Furry Reminder: Pip has one of these when Kat is chastising him for not wanting to feed Leonard. He points out that his natural paternal instincts do make him want to feed Leonard, but he's fighting it because birds feed their young by regurgitating food into their mouths. Pip has another reminder when it comes up that he has to "double flush" when he poops because "birds can't chew".
- Jerk AssPip:(referring to the deadly button in that will kill someone in exchange for a reward if he presses it)"I even held it down".
- Nerd Glasses
- Pity Sex: Well, partly.
- Attention Deficit... Ooh, Shiny!: Iz shiny!
- Cloud Cuckoolander
- Colourful Theme Naming: With her sisters.
- The Cutie: Along with her sisters.
- Fiery Redhead
- Funetik Aksent: To reflect a general simple-mindedness.
- Gadgeteer Genius
- Genius Ditz
- Genki Girl
- Hive Mind: With her sisters.
- Innocent Fanservice Girl
- Leet Lingo: Her name is spelled 5C4RL37.
- Sesquipedalian Loquaciousness: Originally a once-in-a-while gag to show off her Hidden Depths. It turns out to be an aspect of the squirrel hivemind she belongs to.
Violet, Amber and Jade
- Colourful Theme Naming: With Scarlet.
- Gadgeteer Genius
- Hikikomori: Due to OZBASIC making them agoraphobic.
- Hive Mind
- Idiot Hair: Amber's ahoge.
- Leet Lingo: Their names as spelled are V10L37, 4M83R, and J4D3.
- Mad Scientists
- Out of Focus: Even after they find a work-around for their fear of open spaces, they're rarely featured.
- Satellite Character: They're practically never seen apart. Justified: their minds work better when they're within (telepathic? radio?) range of each other.
- Weaksauce Weakness: Severe agoraphobia, forced upon them to keep them from running away like Scarlet did. They also have to stay close to each other or end up half-wits until they rejoin the hive.
- Speak in Unison: They do this when their Hive Mind intelligence is at its zenith, since they are thinking on the exact same wavelengths and thus reach the same conclusions.
- The Chew Toy: Bordering on Cosmic Plaything.
- Cool Pet
- Everything's Better with Platypi
- Team Pet
- The Woobie
- Aura Vision
- Experimented in College: Implied. During a fan Q&A with various Jolly Jack characters when asked if there she was more than friends with Kat she shrugged the question off answering "It was college."
- I See Dead People: She's friends with the ghost of Bram Stoker.
- Nightmare Fetishist
- Of Corsets Sexy: Her primary outfit consists of a black leather corset-style bodice and skinny jeans.
- Perky Goth: She gives most of the credit to caffeine.
- Affably Evil: He doesn't bear anybody ill will, it's just that their suffering amuses him.
- Evil Is Hammy
- Harmless Villain
- Not-So-Harmless Villain: He was just warming up.
- The Napoleon
- Adorable Evil Minions: While following Jack.
- Dark Is Not Evil
- Heel–Face Turn: Like ants, they have to have a master. Kat and Art don't want to be that master (and they really don't want Pip or Scarlet to be that master).
- Living Shadow
- Mundane Utility: What they're used for.
- Alpha Bitch
- Attention Whore: Pretty much her motivation for 99% of everything she does. In fact, the reason she hates Kat is because they both had the same Pink Pony lunch box as little girls, and Hilary was afraid that Kat would take attention and popularity away from her because of it.
- Bitch in Sheep's Clothing
- Bleached Underpants: Her early career in... films... is an Old Shame.
- Break the Haughty: Losing her job.
- Defrosting Ice Queen: Subverted. Her seeming affection to Pip was just a ruse and she's still just as horrible as before.
- Disproportionate Retribution: Why does she hate Kat so much? She had the same Pink Pony lunchbox as Hilary when they were both kids.
- Evil Redhead: Colorations depict her with red hair.
- Hair-Raising Hare: She may be attractive, but she revels in the misery of others.
- Hello, Nurse!
- Jerk with a Heart of Jerk
- Sex for Solace: Averted.
- Buxom Is Better
- Ms. Fanservice
- The Quiet One - or is it The Voiceless?
- Satellite Character: To Mr Jackson.
- Expy: Of Mr. Tumbness.
- Squick: In-universe, he literally has no thumbs, but carries the severed digits around and even tosses them at the flying gorilla guards.
- Evil Is Petty: The reason she put the land of Narni-Narni-Nar-Nar in eternal winter is so she would have an excuse to wear fur-lined robes.
- Expy: Of the White Witch of Narnia.
- Squick: The power of the sun didn't quite repair her face correctly.
- Expy: of Aslan.
- Naked People Are Funny
- The Good King: Certainly seems to have the attitude.
- Mr. Fanservice: King Liam is handsome, built like a brick house, and is ALWAYS naked.
- Walking Shirtless Scene: Comes with being naked for ALL your on-panel time.