*Jessica W. of Dimension C-131 was a student at Harry Herpson High School. She was a popular girl in Morty Smith's math class who he had a crush on. Much to Morty's dismay, she was frequently in a relationship with Brad, though she experienced difficulties with him and the two had been shown to have an on-again-off-again relationship which finally ended in "Rest and Ricklaxation" with Jessica breaking up with Brad.
Jessica is a teenage girl with shoulder-length ginger/orange hair, a pale complexion, and a pear-shaped body. She has long eyelashes and prominent light-peach lips. She is about a head taller than Morty. Day to day, she wears a pale cyan hairband, a form-fitting, periwinkle polo slightly unbuttoned, a box-pleated mauve miniskirt, pale cyan mid-calf socks, and plain white loafers.
In "Ricksy Business" when she attends Summer's and Rick's house party, she wears a dark magenta headband, a strapless, dark magenta dress with a sweetheart neckline, and a mini-length, narrow basque skirt cinched at the waist by a thin black belt with a square, silver buckle, and dark magenta, round-toe pumps.
In "Big Trouble In Little Sanchez" when Morty takes her to a school dance, she wears a lavender headband, a halter-strapped, lavender dress with a sweetheart neckline and a knee-length Basque skirt (either unlined or filled out thinly with tulle layers) cinched at the waist by a bisected, paler lavender belt, and paler lavender, square-toe pumps. We also see her wear this outfit during Morty's flashback of their date in "Rickfending Your Mort"; only here she wears white, pointed-toe high heels instead of pumps.
For all of her outfits, her make-up appears to just be black or dark mascara and pale pink lip gloss.
As one of the most popular women in class, Jessica's part in the series thus far has been as Morty Smith's love interest; however, she has expressed some level of depth. Her most exposing time on screen is in "Ricksy Business," where she has a brief interlude from the party alone with Morty. This ultimately leads nowhere and Jessica remains a seemingly shallow character with plenty of potential for more development. However, there are scenarios showing that she is a well-meaning and considerably nice person. She never shows any contempt for Morty and even greets him warmly despite their different popularity status. She also helps Rick track down Morty to bring him back to his normal self in "Rest and Ricklaxation," and then shows concern after the process. Prior in the same episode, when Jessica gets turned off by Morty's annoying confidence due to his detoxification, she tries to get out of the date by pretending to receive an emergency text, but realizes she is being rude and instead politely tells him why they will not work out.
She seems to consider abnormal things interesting, remaining surprisingly calm in various situations that would drive others crazy. In Pilot, she is impressed with Morty for coming into the cafeteria through a portal, and in "Big Trouble In Little Sanchez" when Morty tells her that tiny Rick is his grandpa in the body of a teenager, her only response is, "Cool."
After spending hundreds of years in the Narnia dimension frozen in a state of conscious cryostasis in "Mort Dinner Rick Andre", Jessica takes on a distinctly philosophical mindset about her place in the universe and time. It remains to be seen how this has affected her overall personality as she is only shown in the immediate aftermath of getting rescued, but she seems to now think of herself as a "time god." This does not seem to remain the case however, as a flashback in "Rickfending Your Mort" showed her on an apparent romantic date with Morty with her pre-Narnia personality either intact or restored.*