Walter stands at 178 centimeters and weighs 77 kilograms. While he lacks defining facial features, he is clearly not Japanese, something that makes him stand out in a crowd. He typically wears heavier, functional clothing that gives him a hobo-look, and his voice is usually monotone. He speaks very formally.
The only difference between his civilian and villain identity is that he usually covers his mouth with a bandanna or piece of cloth.
Personality: Walter has lived almost all of his life on a military base, and it shows. Walter treats the people around him with immense respect, especially if they display traits that he recognizes as leadership/command. Subservience is natural to him, and he will follow the orders of those around him without question (although he may grow angry if these orders are not given politely). Respect is incredibly important for him, as is team cohesion - he will almost always follow the path of least resistance if it means preventing an argument in the group.
His months of freedom on the streets, however, have eroded his once ironclad moral code. While he once would abhor stealing or violence, he now is a hoarder of resources and money and is no longer constrained by morality - he is simply able to twist it in some way as to appear absolutely necessary.
Walter needs people to accept and offer him companionship - he is willing to do immense amounts of work in order to keep his 'friends' around and will be almost oppressively clingy and obedient around them. He is incredibly aggressive towards people who threaten those he thinks of as friends and will go to comical lengths to deliver 'justice' to even moderate insults.
Background: Walter was born and raised in Okinawa, Japan on an American military base. His father spent the vast majority of Walter's life absent, either stationed in another base temporarily or simply only coming back to base to sleep. His mother, while physically present, was emotionally distant and neglected Walter most of his developmental years, leading to his need for constant approval from peers.
Walter spent most of his youth around the other soldiers on base, who allowed him to participate in the physical training and work routine. Most of his childhood memories include doing menial labor alongside others or working out in the base's gym. However, the constant grunt labor he performed in order to help his other soldiers slowly wore him down, especially with the 'No quirk use' policy that covered the entire base. Walter grew to resent this aspect of military life, as he believes using his quirk would allow him to massively increase the work he could do.
When he was 17, Walter's father passed away in a car accident - the event was a happy one, as Walter barely knew his father and he received a staggering amount of attention and condolences from the other soldiers and families on base. It was only a few months after the funeral when the soldiers would stop including him in their games and work routines that Walter realized the truth - they let him join in solely because they knew his father. At least, this was the conclusion that Walter came to. In response, he stole a crowbar using his quirk, and ran away from the base, leaving the island of Okinawa as fast as possible.
Walter continued to steal via his quirk, a technique he perfected over four months living on the streets of various cities he visited. It was only recently that he found what he was looking for all along - a group that would accept a high school dropout like him, and allowed him free use of his quirk whenever he wanted. The chance to make actual friends his age was all the more enticing.
Aspiration: Companionship. Walter simply seeks a community that will accept and treat him as part of a group, and that the group he joins allows him free use of his quirk.
Long-Range Combat: A combination of his experience with firearms and the nature of his quirk allow Walter to excel at ranged combat.
Manpower: Whether it is grunt labor or suicide tactics, Walter's quirk excels at providing disposable bodies to work with.
No Conscience: Walter lacks a major form of conscience or remorse and is thus able to do many underhanded and deplorable acts without a second thought. This is partially genetic, partially from his neglected and generally negative childhood.
Support: Walter will always resort to being a follower - if anyone in his team is present, he will rarely take any initiative on his own, instead doing his best to support them. While he can somewhat act alone, if any form of communication with his team is possible, he will always resort to this to ask for instructions.
Loyalty: The few times Walter does take initiative, it is to follow up on his loyalty to others - if a teammate is in danger or is slighted, he will almost always resort to violence, usually of the reckless variety. In addition, he cannot accept debts and will go to great lengths to pay others back - even if they are enemies.
Walter can secrete black dust from his skin at will, which will rapidly condense into a humanoid figure that he controls. He can make several of these 'Soldiers,' and shares their senses via a hivemind.
Discipline: Walter is able to endure far more than the average person while keeping the mission objective in mind and is especially stubborn in anything he sets his mind for.
Fitness: Significantly stronger than the average man his age, Walter was very focused on getting physically fit.
Marksmanship: One of the few things that Walter remembers fondly from his teenage years on the base, he managed to score very high in marksmanship competitions for his age group.
Heavy Clothes: Stolen from a thrift store when he left Okinawa, these clothes are extremely used and give Walter a homeless look.
Crowbar: The only thing that he took with him from the base, the crowbar was mainly intended as a means of protection while living on the streets.