Jackie is one of Leni's friends from school, along with Mandee. She used to be enemies with Leni's work friends, Miguel and Fiona, until they learned to get along for Leni after making her miss the pop-up sale.
Jackie is a tall slender girl, with tan skin and straight waist-long black hair. She wears light purple eye shadow, a white long-sleeved shirt, a pink and magenta ruffled skirt, a pink headband at the top of her hair, light blue diamond-shaped earrings, and dark purple boots.
Jackie is interested very much in fashion, as she often purchases new clothes and exchanges opinions on fashion with her friends. She seems to care about the well-being of her brother, Sebastian, because she scolded Leni for denying him toilet. Jackie wanted to be a veterinarian, but for some reasons she's no longer certain of this. When she and Miguel said that they loved “Vest Friends Forever”, she was surprised but smiled at him (hinting they like each other). She's also interested in theatre, since she joined drama club in high school.
In "Grub Snub", it's revealed she is good at baking.
This episode also reveals she doesn't like hot drinks.