((I'll be doing Death, Liz and Patti if that's alright.)
Name: Death The Kid/Kiddo-Kun
Age: 16
Gender: Male
Brief Personality: Kid suffers from obsessive-compulsive disorder, or OCD, which is manifested as an obsession over symmetry, otherwise known as asymmetriphobia. Things (and people) must be perfectly symmetrical, lest something unknown and awful happen. Thus if anything is off by any measurement (a picture frame off by millimeter, or a pose that is slightly out of place), he will try to correct it right away, even at the expense of the mission at hand. His favorite number is 8, not only for its symmetry, but for the fact it divides out evenly. He is so obsessed with symmetry that Kid refuses to fight a battle unless he has both Patty and Liz together, as he would be asymmetrical holding just one. The fact that the left half of Kid's bangs are marked with three white stripes causes him much stress. He has attempted to dye his hair all black to cover these asymmetric Sanzu Lines; however, due to his body being that of a Shinigami, it rejects the hair dye and soon returns to normal. The Index of the Book of Eibon referred to this obsession with order as the Madness of Law.
Looks: --> All over my signature.
Fandom: Soul Eater.
Powers: Naturally, Kid is very skilled with guns as he uses the Twin Demon Guns as his weapons of choice. He holds his weapons in an unorthodox manner. The guns are held upside-down, with his pinkies used to pull the triggers. In addition, rather then normal bullets his weapons have the ability to compress his soul wavelength and fire it at the target. This allows him to blast his soul wavelength through the opponent (as shown when used against Soul and Black*Star in their first encounter). The attack is more of a dark-like 'stream' of energy that fires through the enemy, though it won't open a hole through the opponent or his/her clothing.
Other:
Name: Elizabeth (Liz) Thompson
Age: 19
Gender: Female
Brief Personality: While Patti is very child-like, Liz is more like a teenage girl (worried about makeup, shopping, etc). Despite mostly being the cool-headed and serious of the sisters, she is shown to be extremely afraid of paranormal things, convinced that any ghost she meets is out to eat her (where her paranoia severely irritates the ghosts that are trying to help her). She can also be a little cynical and shallow, and sometimes takes advantage of other people for her own gains, like when she pretends that Tsubaki's cooking is her own to impress a boy she likes. She can be flirtatious and can also be charming to men, mostly in order to decieve them (which is shown when she tricks Giriko alongside Patti).
Looks:

Fandom: Soul Eater
Powers: If Kid is not with them, she can use her sister's weapon form and vice versa, though it is slightly less effective than if they would be utilized by Kid. Unlike her sister, Liz appears to be more focused and better at sharp-shooting than her sister. This goes back to when they were in Brooklyn, where it is implied that Liz was more often the meister with Patty being the weapon. It is currently unknown about any other fighting capabilities. (Rest explained in Kid's form)
Other:
Name: Patricia (Patty) Thompson
Age: 16
Gender: Female
Brief Personality: Patti mostly speaks in a sing-song voice, acting and speaking like a little kid. She says "hullo" and "sowwy", like how a child says "hello" and "sorry". She is so naïve and simple-minded that she thinks everything is all fun and games and she does not take anything seriously, but many fanbases find this to be cute or endearing. While taking an important written exam, instead of answering questions, she began making an origami giraffe out of her test papers, then "broke its friggin' neck". Her current personality differs from the seemingly aggressive personality she had during her time in Brooklyn, developing her current personality after she met Kid. Unlike her sister, Patti enjoys the drama brought on by Kid's perfectionist attitude, though she does cheer him up when he gets down on himself about it.
Looks:

Fandom: Soul Eater
Powers: If Kid is not with them, she can use her sister's weapon form and vice versa, though it is slightly less effective than if they would be utilized by Kid. While acting as a meister, Patty's method of hitting her target can be described as chaotic and disheveled. Her grip and form are all over the place, but still, she manages to hit her target while practicing in the Shibusen Firing Range.
Because she is a weapon, Patty was never able to showcase her athletic capabilities. During sparring matches, Patty was shown to be surprisingly proficient in hand to hand combat, being able to take on five opponents in a row without any drop in form.
Other:
Accept who ever you want :3 Prefferably them all, but it's your choice!