Nagatoro from DON'T TOY WITH ME, MISS NAGATORO

The Antagonist, Saiko Chan is a psycho Serial Killer. She's a very unique Yandere type. She loves to play with you before she has a chance to kill you. The game focuses more on The Antagonist, Saiko Chan.

Saiko Chan is a Psycho Serial Killer

Enceladus is a character in SolarBalls who is one of the major Saturnian moons.
Not much is known about Enceladus's personality, other than that his patience is quite low. He also hates being called "Ensalada", to the point that he tells anyone not to call him that. Otherwise, he won't respond to them and will get mad at them.

impatience, hates being called Ensalada

Flowey is the first major character that the protagonist encounters in Undertale. Flowey serves as the main antagonist for the Neutral and True Pacifist routes, and can be considered a deuteragonist for the Genocide Route. He provides an introduction to the mechanics of encounters by sharing "friendliness pellets," which are actually harmful bullets, revealing his philosophy of "KILL or BE KILLED".

Brazil is a Nice and Brave and Fast and Likes to Send People To Brazil

Brazil is a Nice and Brave and Fast

Neptune is a protagonist from the web series: Solarballs. He is the 8th planet from the Sun.
Neptune is considered to be “weird” and doesn’t have a great memory. This is shown when he meets Pluto after 3 billion years, he does not seem to remember the Dwarf Planet. But right after meeting him he forgets him again, This causes Pluto to go hangout with the other Dwarf planets. Neptune is also shown to be “not trustworthy” right after promising not to tell the rest of the planets that Uranus stink.

Memory Loss, Ice Giant, Weird

Albino Macari Is a Cyan Creatue That Comes From The Bibites. Albino Macari Is The Large Carnivorous Creature
Since Albino Macari Is a Carnivore, Albino Macari Will Eat Meat and Also Their Prey

Large, Carnivore

Umbriel is a character in Solarballs who is one of the five major Uranian moons alongside Miranda, Ariel, Titania, and Oberon. 

Not much is known about Umbriel’s personality. However, she is mute, and doesn’t speak at all. She is able to judge others' intentions, shown when she was able to ensure Titan’s intentions aren’t harmful to them. 

Mute

Bob is a Slime Who Loves to Play With Someone and Stick Themself to Random People For No Reason

Bob is a Cute Living Slime

Carl Is The Creature That Comes From The Bibites, Carl Is The Large Green Herbivorous Creature
Since Carl Is The Herbivore, Carl Will Eat Plants, Grass, Fruits
Carl Will Also Protect Other Herbivorous Creatures From Omnivorous And Carnivorous Creatures

Large, Green, Herbivorous

X is an algebralian, variable and the co-host of BFB.

X's first appearance in BFB was in "Getting Teardrop to Talk" where they and Four started a competition to win "a BFDI" (a compilation of all season 1 and 2 episodes).

X Is The BFB Co-Host

Needle is a female contestant on Battle for Dream Island, Battle for Dream Island Again, IDFB, Battle for BFDI, and Battle for Dream Island: The Power of Two. 
Similar to Ice Cube, Needle is a relatively quiet and vengeful character. She is mainly known for her irritable behavior whenever someone calls her "Needy". She will slap anyone who says the word, sometimes when it isn't directed at her.

Quiet, Vengeful, Hates Being Called Needy

Saiko Chan is a psycho Serial Killer. She's a very unique Yandere type. She loves to play with you before she has a chance to kill you. The game focuses more on The Antagonist, Saiko Chan.

Saiko Chan is a psycho Serial Killer

Four is an algebralian and the main host of BFB, and the host of the non-canon one-episode series, Battle for Permission to Meet 10. Four and their co-host X first appeared in the 2008 video "X Finds Out His Value". 

Four exhibits very surreal mannerisms, including being able to deform or change mutilate characters, revive them, screech to stun them (killing them on some occasions), eliminate them by sucking them into his body (sending them to the EXIT), and shoot energy beams from his hands.

Four Is The BFB Host

Ganymede is a character in SolarBalls, who is one of the Galilean moons along with Io, Europa, and Callisto. He is implied to be dating Europa.
Ganymede is bold, smug, and adventurous, which seemingly is the reason for him being the leader of the Galilean moons. His smug side is shown by his tendency to squint while smirking. He also likes teasing other characters, particularly by their names, which was shown when he calls Enceladus "Ensalada" despite Enceladus telling him not to.

bold, smug, and adventurous

Jupiter is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass more than two and a half times that of all the other planets in the Solar System combined, but slightly less than one-thousandth the mass of the Sun.

Jupiter is the fifth planet from the Sun

hes quite self-conscious as he Does not like to be made fun of by the other Planets and get annoyed easily whenever they tease him about his name or his smell. he also do not like being ignored (shown in Why does Saturn have rings? and Venus wants a makeover!) and starting things from zero (shown in the sponsor section of Surviving Venus (Part 1)).

I'm the 7th planet from the Sun

Venus is the second planet from the Sun and a main protagonist in SolarBalls. Venus is aggressive and generally angry, and tends to bully other planets, mainly inserting dominance to Mercury, but also including Earth, Mars, and the Moon. His debut was in “ “Space is normal” they said…”. He houses the Venera robots. He is very hot and sometimes nice to all planets.

Aggressive, Second Closest Planet

Muted

Trollface Likes to Troll People For No Reason

Saturn is a kind-hearted gas giant. He is sometimes shown to be proud of the fact that he has the largest rings in the Solar System though not at an arrogant level and is very polite towards his fellow planets. but saturn will become sad or upset when insulted

kind-hearted, very polite, gas giant

Triton is a character in Solarballs who is one of the 7 outer Neptunian moons and the only spherical one. 
Unlike Ganymede, who uses his charisma to lead people and get them to do what he wants, he generally prefers to be solitary, although it is assumed he may like Callisto and acts as a caretaker of sorts for the other moons of Neptune, who view him as a big brother. 

smug, confident and cool

Black Hole is a male contestant on Battle for BFDI and The Power of Two.

Black Hole is a calm and collected individual, never raising his voice. Valuing life, he is empathetic and patient. He's always kindhearted, never wanting to be rude to others and never wanting to start conflict or harm others. He is very caring and respectful of others and will not hesitate to save the lives of others.

Death P.A.C.T Member

A-332 is the fourteenth entity you will encounter in Interminable Rooms. It moves absurdly quick, making it dangerous upon spawn. Its spawn noise is a glitchy, voiceless scream, akin to static. Once spawned, A-332 will play a low, constant distorted static, with random zaps that are separated by only a few seconds.
The phrase "Sucky Sucky Hair!" comes from Realcat when he made a joke of it in Noonies server.

Sucky Sucky Hair

Richard Paul Astley is an English singer, songwriter and radio personality, who has been active in music for several decades, He Likes to Send This Link https://www.youtube.com/watch?v=dQw4w9WgXcQ to The Random People to Rick Roll Someone

Richard Paul Astley is an English singer

Can Only Say KYOOOOOOOO!!!

N is the 14th letter of the alphabet and the main protagonist of the series. He was used to make the words "FRIENDS/friends", "GUN", and "VAN".

He is the holder of the semicolon ";" gem. N was F's friend when they were children. The ; (semicolon) gem seems to make letters stick together like how a real semicolon connects sentences.

LMNOP Crew, Cowardly Hero

Carl the NPC (also known as NPC or Carl) is the main character of ROBLOX NPCs are becoming smart. He is a gun-obsessed smart NPC, and the best friend (sometimes rival) of GroovyDominoes52 and Player. Depending on the ending you get, Carl can play the role as the antagonist, protagonist, or deuteragonist.

Gun-Obsessed, Smart NPC

Z is a ginormous planet who is the home to every other letter that existed. Z watched the story of F, and cried when watching his descent into madness, which means it cares about the letters that live on him/her

Planet-Sized Z

The Eye of Cthulhu is a pre-Hardmode boss. It is one of the first bosses a player may encounter, as it spawns automatically when a relatively early level of game advancement is achieved. It can also be summoned manually with the Suspicious Looking Eye at night (see Spawn below)

The Eye of Cthulhu is a pre-Hardmode terraria boss

X is the most powerful letter out of all other letters. His gem has an ability to multiply infinitely with no limits even if all the rest of the gem holders work together, even they won't stop against an army of the same skilled X's. There might be a theory where X wanted to fulfill his dreams of being a ninja/hero

X is the most powerful karate letter

Ceres is a dwarf planet that lives in the asteroid belt. He is the second Dwarf Planet in the show, after Pluto.
Ceres seems to mentally unbalanced as he behaves a lot more chaotically compared to other planets.
