Stocking is of moderate height and buxom figure compared to Panty's slightly slimmer torso. She has pale skin and long dark-blue hair with a pink underside which reaches knee length. It is styled in a hime-cut and features some pink stripes on the bangs, along with a blue bow adorned at the back of her hair and dark blue nail polish. From the second season onward, her hair is graduated and fades from pink to purple. The color of the bottom stripes of Stocking's hair were also changed from pink to purple and her blue to a bluish indigo. Her eyes have teal irises and prominent, triangular lower eyelashes.

Outfits Stocking dresses in a dark-colored, gothic Lolita style. In her human form, she wears a black short dress with puffy sleeves and a white laced underside underneath the dress, she wears a white collared blouse with a blue western bow-tie, along with a large blue bow which is tied backwards around her waist. She also wears blue-black stripped stockings and a pair of black loafers.

In her previous angel form seen in the first season, she wears a white dress with baby blue horizontal stripes, featuring a layered, ruffled skirt trimmed with lace that gives it a soft, floaty look. The bodice has a corset-like design made of silver metallic fabric, detailed with light blue frill trim, and a white bow is tied at the back. A blue heart sits at the centre of her chest, surrounded by two silver straps that cross over her shoulders. A silver strap is wrapped around her upper chest, and her waist is adorned with two more blue hearts, each accented with ribbon bows.

Beneath the dress, she wears blue-and-white striped stockings, cut at the bottom like leg warmers. Her footwear consists of silver open-toed high heels with silver cross-shaped straps across the top of the foot. At the back of her head, she wears her usual blue bow, along with a silver choker decorated with light blue frills. On each wrist, she wears two silver bracelets, and long white sleeves extend from silver rings on her middle fingers to silver armbands resting on her upper arms. Like Panty, she has small, white cherub wings on her back.

Stocking's defining trait is her gluttony towards sweet foods. Similar to her sister Panty's obsession with sex, Stocking often has a compulsive need for sweet snacks, mainly cakes and pastries. Her persistent eating habits have drawn criticism from Panty, Scanty, and Kneesocks, but Stocking usually excuses it with her claim that her fat goes to her breasts. This obsession with sweets is best displayed in "The Diet Syndrome," when she went insane in her attempt to go on a diet; after Hell Pound was defeated, she reverted to her usual overindulgent behavior as if nothing ever happened. It seems that Stocking has calmed her urges in the second season, though, as she stated she was on a diet in "Independence Dick." Stocking hates spicy food just as much as Panty hates sweet food.

Stocking is typically a level-headed and reserved person, especially compared to Panty, and rarely lets her love for sweets get in the way of her Ghost-hunting duties, which is why she was allowed reentry into Heaven unlike Panty. She may be the smartest of the Anarchy sisters, something that even Panty admitted in "Nothing to Room," but she isn't highly intelligent, as she failed to recognize Garterbelt and Kneesocks' seemingly obvious disguises. Although she cleans her room more than Panty, she is still lazy, as she regularly commands the Daemon sisters to complete tasks for her. She is also quite snarky and possesses a cynical demeanor which hasn't earned her as much popularity on Earth as Panty. In spite of this trait, however, Stocking is the most emotionally sensitive of the four central girls (Anarchy and Daemon sisters) because she tends to lash out at others and/or cry when she is overwhelmingly upset. Although Stocking is nowhere near as sexually active as Panty, her standards in men are ironically much lower than Panty's, as she has fallen in love with an utterly shameless and dirty Ghost and a man with scissors for hands. Rather than one-night stands, she seeks a long-term relationship. While Stocking disapproves of Panty's sex-filled lifestyle, she is also shown to have her own sexual desires, especially that of masochism and BDSM. Along with owning several dildos, Stocking is turned on by being entangled and electrocuted. Though her masochistic tendencies are completely toned down in the second season, Stocking also gained immense sexual pleasure, which she claimed feels better than sex, every time someone liked her Influenstagram posts in "Bitch Perfect."

Stocking adores small creatures and finds them to be very cute, such as the Cowpers, Vibe, and the offspring of Kaiju Garterbelt; ironically, all of these are Ghosts. Being a goth girl, Stocking takes interest in dark, gothic aesthetics. Stocking owns plushies of Jack Skellington and Oogie Boogie (both from The Nightmare Before Christmas), Death Jr. (from the eponymous video game), Lenore (from Lenore, the Cute Little Dead Girl), Frankenweenie (from the eponymous film), and Anabelle (from Nightmares and Fairy Tales). In "Bitch Perfect," Stocking dressed up as Wednesday Addams for one of her Influenstagram posts. Stocking also seems to like using the Internet, regularly posting sweets on her blog and Influenstagram. Stockiel Anarchy was born some 500 years ago as the second and youngest child of Linière and Silk, both of whom serve as the King and Queen of Heaven, respectively. Stocking and her older sister Panty were kicked out of Heaven after Stocking turned a blind eye to Panty having sex with her ex-boyfriend on their parents' bed.[7] As a form of punishment, they were both sent to live at the Cemetery Hills Church with a priest Garterbelt in Daten City, a city on Earth, and forced to kill the Ghosts that roamed the city. Once they earned enough Heaven Coins from the Ghosts they killed, they would be able to return to Heaven. Stocking quickly became homesick, so Garterbelt created a kitty doll named Honekoneko to lift her spirits; she has always carried the doll ever since, referring to it as her "best friend."

Stocking gradually grew accustomed to living in Daten City, particularly taking a liking to the sweet shops around the city, and assisted Panty in their efforts of killing Ghosts. She and Panty also regularly faced off against their demon counterparts, Scanty and Kneesocks Daemon, who both took Panty and Stocking's spots as the queens of Daten City High School while they fought Ghosts elsewhere. The Daemon sisters were revealed to be behind the production of Ghosts in "Les Diaboliques," and tried numerous times to kill the Anarchy sisters with no success.

By "Panty + Brief," the Anarchy sisters finally completed their quota of Heaven Coins; however, only Stocking was allowed to return to Heaven because she had earned most of their coins while Panty slacked off, instead focusing on having sex with earthly men. As the city's mayor Corset attempted to open Hell's Gate with Brief's penis, Stocking descended to Daten City once again to help defend Panty in "Bitch Girls." The Anarchy sisters fended off the Other Gods, a massive penis-shaped Ghost unleashed from Hell, and used their Ultimate Weapon to kill Corset once and for all, but accidentally shot the sky instead. The shot summoned their mother, who promptly stomped on Corset and the Other Gods, seemingly killing them both. Upon reflecting on the damage they cause, the Anarchy sisters accepted that they would probably be staying in Daten City for a while

Angelic transformation - As an angel, she is able to transform into her angel mode using her halo. Flight - Like any other angel, she can use her wings to get around by flying. Although, she and Panty choose not to for the most part. Effect nullification - As seen in the episode "Trans-homers", Panty and Stocking have both shown the ability to nullify any effects given to their physical appearance by transforming into their angel form; however, it has only been only proven to nullify the effects of them becoming robots. Transformable garments - to prepare for battle, Stocking removes her stockings, to which she can transform into a pair of katanas. They are known as Stripes I & II, and can be attached at the base of the hilt. It's safe to assume she can form other blades as well, considering the range of weaponry at Panty's disposal. Stripes I & II are able to hurt any spiritual being, such as angels, demons and ghosts. Immortality - As she reveals in "Catfight Club", Stocking has waited at least 500 years in line to but a Jean-Paul Heaven pudding, making her and Panty at the very least 500 years old chronologically. Regeneration - During her brawl with Panty in "Bitch Girls: 2 Bitch" she is able to regenerate parts of herself after being injured by her own weapon. Good Luck - In "The Stripping", she and Panty were able to win upwards of 3 million Daten City dollars at a casino, which was only thwarted because the Daemon Sisters' bad luck cancels out their good luck. She mentions the power again in The Ohagi of Doom. Enhanced durability - As an angel, she has a higher tolerance to physical injuries compared to the average human. Skillset Swordsmanship - Stocking displays a supernatural proficiency with her katanas. This includes the ability to spin the blades fast enough to effortlessly deflect bullets, the ability to send out razor-sharp slicing waves by swinging her weapons, and the ability to spin like a top with her swords extended to damage everyone around her. It has been stated by Garterbelt that, contrarily to her sister, she emphasizes skill over power. Hand-to-hand combat - TBA Agility/Athleticism - As shown throughout the fight sequences in the series, she has exceptional agility and reflexes. Theatrical talent - As shown in "Fa Fa F*ck", she was able to sing and dance alongside Panty, The Daemon Sisters, and Brief onstage. Driving - She, Panty, and Chuck alternate between each other in driving their car, See Through. Guitar-playing - In their band, she is shown to play the guitar. Piano-playing - In the season two outro, she is shown playing on a keyboard. Baking - TBA Pole-dancing - As part of her transformation sequence, she has also shown her skills in pole-dancing. Unique abilities Ghost fusion - In "Panty and Stocking: Homecoming", she was able to fuse with a ghost, gaining its physiology.