Characters / Ratboy Genius

Ratboy Genius

The titular character. He's a kind-hearted rat-like creature who rules over Ratboy's Kingdom.

• Catchphrase: "Knock knock", which he usually says when greeting people.
• Primary-Color Champion: As the main character, it's fitting that he has yellow "fur", a blue cap and shorts, and a reddish-orange T-shirt.
• Protagonist Title: The series is named after him.
• Rubber Man: It's later shown that he has the same stretchy abilities as Little King John.
• Synthetic Voice Actor: His high-pitched voice is clearly computer-generated.
• You Dirty Rat!: Averted. Despite being a "Ratboy", he is friendly and caring.

Happyman

Ratboy's eternally optimistic friend.

• Perpetual Smiler: He is always smiling, even when he's angry, such as when Little King John steals his factory.

Green Monster

Another friend of Ratboy's.

• Exactly What It Says on the Tin: True to his name, he is a green monster.
• Non-Malicious Monster: Sure, he's a scary-looking monster, but he's actually a nice guy.
• Perpetual Frowner: Despite the fact that he's usually in a good mood, he always has an angry expression on his face.

Summer Solstice Baby

Ratboy's girlfriend.

• Love Triangle: Between her, Ratboy Genius and Little King John. The series "Ratboy Dreams Minecraft" revolves around the latter's kidnapping of Baby and the former's rescue.

Little King John

A minor antagonist in the series, who seems to be on the way to making a Heel–Face Turn.

• Breakout Character: He was popular enough to spawn his own series called "The Flood", which later on, is revealed to be a Shared Universe with "Starship Genius".
• Big Bad: In "Dreams Minecraft"
• Body Horror: Mostly Played for Laughs, but he can stretch his body in the most unnerving way possible.
• Cool Crown: He wears a golden crown.
• Heel–Face Turn: The Series Finale for "The Flood" cements this entirely. To put it, he started out as the Big Bad of "Dreams Minecraft", then the Villain Protagonist for the first few episodes of "The Flood", then a Nominal Hero in later episodes, and now a flat out Hero by the end.
• Jerkass: Mainly in "Dreams Minecraft", but he still has his moments in The Flood.
• Pride Before a Fall: Much as he started off as an villainous king, The Flood is all about LKJ losing everything he had, surviving the apocalypse, and learning to value other people, which results in taking a level in kindness.
• Psychopathic Manchild: Although he leans more strongly towards "manchild", he has shades of this, such as when he steals Happyman's factory. "This is mine! This is mine! This is mine, too!"
• Rubber Man: He can stretch his neck and limbs to rather disturbing lengths.
• Synthetic Voice Actor: Like Ratboy, his voice is computer-generated.
• Trademark Favorite Food: Potato knishes, to the point that about half of his Villain Song is about how much he loves them.
• Wicked Cultured: He can play the piano and the pipe organ, and one video even features him playing a fugue that he composed himself.
• You Dirty Rat!: The only ratboy who is actually evil.

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Sue

• Beneaththe Earth: In Happyman Opera, Fred says that Sue lives "in the underworld," a description which appears to be more literal than biblical.
• Informed Attractiveness: Bob comments on Sue's beauty when he meets her, even though she's drawn with Dorin's signature crudeness.
• Losing Your Head: Her head can fall off.

George

• Blood Knight: George is always spoiling for a fight. This ends up coming back to bite him when his refusal to stop fighting Big Fish Boss when ordered to results in the crash that lands him and his siblings on the Red Planet and destroys his arms.
• Broken Bird: After the traumatic crash that landed the Galactic Superheroes on the Red Planet, George is left depressed, isolated and so starved for friendship and affection that he's gone a bit off the deep end
• Genius Bruiser: Handles navigation for the Galactic Superheroes and is also the muscle of the group.
• I Just Want to Be Loved: Thanks to Fred's efforts in directing visitors away from him, George is left alone and isolated on the Red Planet. He desperately longs to have a friend.
• Multi-Armed and Dangerous: He has four arms. They get ripped off during a crash.
• My God, What Have I Done?: Is absolutely wracked with guilt after kidnapping Bob and discovering he escaped into the Underworld.
• Body Horror: His arms get ripped off during a crash.

Fred

• Bitch in Sheep's Clothing: While Fred is initially friendly and polite, he's quick to turn on people when they don't do what he wants them to. He takes to calling Happyman, Green Monster and Bob names when he sees them not heeding his warnings to stay away from George, takes pleasure in seeing them run through the wringer and calls them fools to their face once they meet up again. He's also very cruel and short with George whenever they meet despite George's only real crime being that he's clingy and a bit annoying.
• Epileptic Flashing Lights: When he talks, his body starts flashing.
• Half-Dressed Cartoon Animal: Fred doesn't appear to be wearing any pants.
• Intelligent Gerbil: Fred loosely resembles an aardvark.
• No Mouth: He has a small trunk instead.

Old Man Fingerhead

• Grumpy Old Man: He's a old man.
• A Head at Each End: Young Mouthbottom's face is at the back of his head.
• Screw Politeness, I'm a Senior!:

The Professor

• The Professor: Pretty self-explanatory.
• Starfish Alien: For lack of a better term. He's a strange, wise being that can choose to not be perceived, knows exactly when certain things will happen, and is constantly shifting and morphing, sometimes to the point where his face gets pulled through itself, or even splits in half from the nose down. Despite the appearance, he's perfectly personable and just wants to help.

The Hoo Hoos

Odd pixie like creatures fond of singing and making mischief.

• Pokémon Speak: Singing "Hoo" in melody is all they can say.

Fish Eaters

Large serpent like creatures who love to eat fish

• More Teeth than the Osmond Family: All have big toothy maws, like a crocodile.
• Trademark Favorite Food: Fish!
• Unwitting Instigator of Doom: One Fish Eater getting particularly snacky is what sets off the Big Fish Boss and starts the latter's campaign of destruction.

The Big Fish Boss

A giant evil space fish who leads his Fish Legion armies in a bid for galactic domination.

• Big Bad: Of "Starship Genius"
• Catchphrase: "The Galaxy is for FISH!"
• Shock and Awe: He and his Fish Legions are capable of generating and directing a great amount of electrical energy, manifesting in a great Cosmic Thunderbolt capable of destroying entire planets.

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Sneezy

A doglike character met by Little King John after he escapes his sunken kingdom, who agrees to tag along on his journey to find a new land.

• Morality Pet: John's friendship with Sneezy marks the start of the former's Heel–Face Turn

Caveman

An odd man living in the strange underground fortress beneath the Ancient Artifact, who delights at throwing stones at passersby for a game, whether they like it or not.

• Dishing Out Dirt: Caveman extrudes stones from his hands, giving him a limitless supply to throw as he pleases.
• Handsome Heroic Caveman: Well, as handsome as you can get in this series' style, but he does come around to help Little King John.

Mister Big Arms and Very Tall Friend

Two friends of Ratboy Genius, who journey to Little King John's world in order to ask for his help.

• Those Two Guys