- Sweetie is considered to be a West Highland White Terrier.
- She is the second animal (seventh if one counts the Kitten Catastrophe Crew as separate antagonists) to be an antagonist in the series, the first being the Kitten Catastrophe Crew, and the first example of a pup antagonist.
- She is the third female pup overall.
- Her originally planned voice actress, Brianna Daguanno, is also the voice of Luna Girl on Disney Junior's PJ Masks. However, she was replaced with Anya Cooke before the episode was released.
- After laughing, she snorts.
- It is unknown as to who gave Sweetie her uniform, vest, vehicle and it is also unknown as to why she has this kind of equipment. Despite her uniform's similarities to the PAW Patrol and their Mission PAW's uniforms, it is likely they are unrelated to the PAW Patrol as Sweetie's uniform lacks the PAW Patrol's paw symbol and she wears a crown tag instead of a pup-tag. Given Sweetie's personality, it is likely that she may have used her position as royal pup of Barkingburg to acquire her uniform, pup-pack, vehicles, and her robotic toy minion Busby. Presumably like Mayor Humdinger's Kitten Catastrophe Crew, Sweetie may have used the PAW Patrol as inspiration for her gear, albeit personalized for Sweetie. In addition to her crown pup-tag, when she takes control of the Air Patroller using Busby, the Mission PAW logo is replaced by a crown logo on view screens. The crown likely represents her obsession with becoming the queen of Barkingburg.