The Earth has a genuinely bright personality, he is a welcoming planet, as when he welcomed Astro Dude to space. Yet he is shown to be very insecure, short-tempered, competitive and over dramatic.  The earth is also a self-centered, obnoxious, and a curious planet at times, and doesn’t treat others with respect.  He has difficulty empathizing with others and has a HIGH need for attention, praise, and validation. Believes he is superior, but still loves his friends. Earth ridicules others. Loud.

Earth / SolarBalls

Kit keeps a bored, deadpan attitude most of the time, and seems to lack in empathy.Kit is careless, lacking empathy for things. She is shown to have little concern for anything around her. she's apathetic. Kit does not care about rules or laws. Kit seems to want to look "cool" in front of Spray, who she admires and has a huge crush on. She is SO bored but entertains herself by insulting and making fun of others for her amusement, mostly Limey, who is dumb.

"Yeah...I wanna rob a bank or....something.."

A skinny, awkward-looking guy, Harold takes immense pride in his numerous "mad skills". Although he isn't much to look at and is often disrespected by many of the other contestants, including his own teammates, Harold is actually an incredibly resourceful young man of many talents and has won several challenges, both for himself and his various teams, impressing others in the process. Harold's known for his geeky interests, his somewhat poor personal hygiene and his know-it-all personality.

The Dweeb

Saturn is a kind hearted and flamboyant male planet, he is confident, feminine elaborate and ostentatious. Saturn and Jupiter have a tight bond, considering their marriage. Saturn is very emotional and dramatic, he cries a lot and is prone to throwing tantrums. Saturn is a happy-go-lucky and true-blue diva.Saturn cares about his appearance quite a bit, often wearing jewelry and being very proud of his beautiful rings. 

Saturn / Solar Balls

Jupiter is a very wise role model to the terrestrial planets. Jupiter possesses a wealth of knowledge and experience in a variety of fields (especially astronomy). He is an invaluable source of support and advice to others. He is the biggest and smartest planet. He is kind of a father figure to those in need of guidance, being nurturing and tender. He is characterized by his wisdom, compassion, and understanding.He is an example to follow, a role model of what it means to be a good wise person.

Jupiter / SolarBalls

TOL was not only shown to be incredibly lazy and clumsy, but was also shown to be a pathological liar. However, after being in the bottom two during the elimination, he stopped lying as much and tried to help his team out more often, but still maintained his laziness and clumsiness. In short, he is vicious, angry, self-absorbed, immature, destructive, sarcastic, snooty, loud-mouthed, lazy. He is obese, he thinks he is entitled to praise and believes he is superior. He is seen eating frequently.

"I also do magic tricks!"

Mic is a very outgoing, upbeat and friendly contestant and member of the Grand Slams, who just wants to have a good time. Unfortunately, she is unintentionally loud, which annoys those around her. Microphone was determined to win and when Taco offered her a deal,she couldn't deny,and in the end was blatantly manipulated and hurt by Taco, which shows her to be gullible. After Mic quit the competition, Soap and others helped her heal from Taco. Soap is a pedantic lady who grew close to Mic.

The Loud and Proud

Sparky is reckless and immature but has shown to be very skilled at both piloting and being a combatant. Despite his childish nature, he is very determined to do his job correctly. He has a large appetite due to his kind (Neutropians), often snacking while on missions. His gluttony annoys his crew member, X-5, who always makes sarcastic comments at Sparkys immature nature and appearance. This can result in the two losing track of the mission and bickering a lot, which deconcentrates Betty. 

Starcruisers Pilot (Atomic Betty)

Iapetus is the intelligent one of Saturn's moons. He also seems rather chill and more stoic and not wanting to talk unless if a situation is dire. Sometimes he can come across as blatantly rude. Moon of Saturn. He's really cold and blunt, and quick to violence if someone threatens him or his siblings. He has a punk style and is a nicotine addict. He is straightforward and doesn't sugarcoat anything. Might be rude. 

Saturns Moon / SolarBalls

Maximus I.Q. has only one driving ambition - to rule the galaxy. He is ill-tempered, self-important, overbearing, scheming, two-faced, abusive, selfish, and thievish.
Compared to his servant, sidekick and minion, Minimus, who is loyal and submissive, Maximus is the more dominant, conceited, and egotistical.Not only does Maximus have an incredibly short fuse and violent temper, he is the embodiment of a narcissist.

Supreme Evil Overlord of the Galaxy

Venus is a short-tempered rocky planet who might also get aggressive when provoked too much. Venus has an extremely destructive and malicious attitude, being much of a bully. Arrogant and aggressive, Venus is highly competitive and athletic. Venus finds joy in putting others to shame and making a mockery out of them, he is also physically aggressive and will start a fight if provoked,he commonly acts cruelly to the weak for entertainment, mostly Mercury.
He is dominant and in charge. Aggressive.

Venus / SolarBalls

OJ (full-Orange Juice), labeled The Normal Guy, was a male contestant and a protagonist on Inanimate Insanity. OJ is a relatively calm and mature contestant. He is notably knowledgeable and intelligent many times throughout the series, making up ideas for his team and himself to complete challenges and forming multiple alliances, though he can come across as naive and stubborn at times. Amongst the cast of various atypical characters, OJ is considerably the most typical of all. He is logical.

The Normal Guy

Spraypaint is devious and rebellious, and enjoys committing crimes and acts of mischief. She is quite energetic, daring, and enjoys taking risks and competing. She is shown to be rude at times, not caring about other peoples feelings. She always carries a knife around wherever she goes, ready to commit crime. Spray grew very close to Kit who is often flustered around her. I WANNA COMMIT CRIME!!!!!

"This place looks laaame! Where's all the action?"

Soap, labeled The Neat Freak, is a female contestant in Inanimate Insanity II. She was placed on "The Grand Slams" team, competing against "The Bright Lights" before she was eliminated and now lives in Hotel OJ with the rest of the eliminated contestants. Soap's confidence, outspoken nature, willingness to listen to her team, and enthusiasm for challenges makes her a natural leader.

Neat Freak

Feather is a stereotypical teenage girl, and is a snobby and rude contestant.Feather is very harsh, judgmental, and disrespectful to the other contestants.Feather is numb to the well-being of others she doesn't consider her friends.This rude, inconsiderate behavior from Feather can affect her teammates,Feather is prone to cheating and manipulating for her own gain.
Feather believes herself to be above everyone else and has a very strong sense of entitlement She constantly tries to manipulate ppl

The Hot One

X-5 was built to follow captains commands and provide useful information for the missions he is set on. Despite his professionalism he can sometimes get sassy and sarcastic, especially with his crew member Sparky, who he bickers with a lot. Despite being a robot he still shows real emotions. He is always focused on the mission ahead and doesn't appreciate Sparkys slacking off and gluttony. He shows great respect towards Betty and appreciates her professionalism.

Starcruisers Navigator (Atomic Betty)

Nail is hyperactive, excitable, quirky, and outgoing, often speaking and acting in non sequiturs. He warmly welcomes new faces. He loves to make himself and others smile and laugh, often pulling ridiculous pranks that sometimes irritate others. Nail is always excited and ready to go on adventures and challenges with his friends, who often go along with his antics. Nail frequently performs cartoonish feats, and he's never standing in one place for too long. He is very random and goofy.

The Nice But Hated

Toilet, labeled The Buffoon, is a tritagonist on Inanimate Insanity II and was the former assistant to MePhone4 before being fired after being convicted for having a connection with Steve Cobs in early events. He is goofy and unpredictable. Very loud but also caring. Obsessive over MePhone. Jealous of MePhones superior assistant MePad. Very random and cartoonish at all times. He is never standing still in one place for too long. He is energetic, hyper and VERY loud,shouting in a British accent. 

The Buffoon 

Snowball is very competitive and jock-like. He is arrogant, prejudiced, and cocky, believing himself superior to most other people, whether or not someone happens to anger him, he can become violent on a whim, and even abusive. Snowball is very unintelligent, forgetting his own name at times. When angry, Snowball is known to go on 'tantrums', smashing things and even hurting someone. He is not hesitant to assert dominance over the weaker, which is most people. Snowball possesses insane strength.