Null

Null has a gray skin tone. He usually wears bandages and gloves with an open thumb on his hands. He also has a black halo in the form of Roblox spawn.

Null is quite a serious person. He will not joke in a serious situation, and it is difficult for him to relax even under normal conditions. However, in private, if he is calm (this rarely happens), he may even smile slightly and relax.

In TR:UD Null as survivor/killer is Ghostwalker user. He can use the Ghostwalker and stun the killer for ten seconds, but for this service, the Ghostwalker will take away several HP from him. (Chostwalker is also a living entity, but his soul is sealed in a white translucent sword)
Ghostwalker - He is also a person, but his soul is in the sword. He may appear in another body (which is not his primary physical one), but he prefers not to do so.
Null does not treat Ghostwalker very well as a person. Ghostwalker annoys him, so Null doesn't like him as a person.

Ghostwalker is a person in his own right. He may appear in human form, but it is not his physical body. Ghostwalker's soul is contained in the sword itself.
Ghostwalker can take control of Null's mind, and can control his body. this happens rarely, but it still happens. Ghostwalker used to be attached to Null's mother, but now he has moved on to Null himself.
The personality of the Ghostwalker:Ghostwalker is cunning and funny, even crazy. He likes to kill people, no matter if they are innocent or not. He likes to torture people.