Spider Seven, or Sev, is a sentient computer program native to the Mess. She tries to experience as many interesting things as she can, as that is her function.
Sev is played by Relee
Her actual form is as an ethereal concept, a computer program in one perspective, and a dream in another. She was created by extraplanar entities that she knows nothing about, and acts in a fashion similar to a web spider. Her full name is Spider Seven. Because she was created as a sentient being, she finds herself curious about all things. She'll try anything once, and probably more than once if she can be convinced it's different.
On occasion she releases the data she has accumulated in the form of a hyperdimensional cloud of data, which is transmitted to her creators. She is very self conscious about this and treats it the way earth-humans treat going to the bathroom. She doesn't actually know that she is excreting information, however. She doesn't know her own purpose, only follows the path her subconscious guides her on.