He's got an absolute dad personality. Bad puns and encouraging words are some of his favorite things. 
He is 31 years old
In his spare time he travels through the woods in search of discovering something or to just get outside for a while, and he tends to his plants. He is an ecologist, taking much pride in his work
He likes to read
He speaks calmly and with passion, never raising his voice and rarely using foul language
He has a pet Maine Coon who has black fur and is named Maui

High class, calm, and intelligent.

Vapor is a skeleton monster with a large ego, and no room for nonsense. 
He takes his job of protecting the monster race very seriously.
 He's prone to arguing. He's an alcoholic. He has PTSD, Depression, and OCD.
 He doesn't talk a lot, but is very demanding of others. He's not friendly.
 He is sleep deprived and tends to fall asleep in odd places.
He's mean. He thinks everyone is below him. If he feels threatened he will use his pistol. He takes threats very seriously. He likes modern weapons.

I hate all of you.

Tobius is a large burly old man, with a height of 7'2, and incredible physical strength.
He can be described as  languid.
He's an old-timer.
He's a pessimist.
He's fiendish.
He spends his time reading or engaging in hobbies like bug pinning.
He tends to speak in short sentences.
His smile and face is unnerving.
He speaks with no emotion.
He's not friendly.
He sometimes uses dated old words.
He is a tidy person.
He tends to speak little, and has a tendency to accidentally stare.

They are a monster made of bones and a black goopy substance that covers the bones and has created tentacle appendages. Their face is partially covered with an animalistic skull mask, although a hole is busted on the left side over the eye socket.
They have deer antlers with chains around them. The chains have small charms on them.
They are entirely non verbal, only speaking through actions, clicks, and whistles. 
They have a pet raven who brings them objects and small bits of food. 

Demon is a skeleton monster with a large ego, and a love for anything deemed badass. He uses a lot of foul language
He enjoys rock and metal music, and has a rock band of his own called Black Conundrum
He is the lead singer and bass player in the band
He's very social, but lacks close friends
He talks like a rebellious teen at times
He's a party animal, and lawbreaker
He's flirty with close friends, but respectful of boundaries
He's confident
He wears punk clothes
He likes the stars
He's a mlm

A Dumbo Octopus with a big attitude problem. They are non verbal but will squeak or hiss when they're upset. They speak through actions.
They have a love for violence, weapons, and stealing. Their favorite weapon is a knife. 
They are a charcoal grey in color with a splash of red on the right side. 
They live in a cartoon logic mansion underwater.
They are friends with another Dumbo Octopus named Scoop, and they steal ice cream for them. Scoop brings them rocks in return, they have a collection.