Perdita is the female protagonist of 101 Dalmatians. She is a Dalmatian dog who is the pet of Anita Radcliffe, mate of Pongo, mother of 15 Dalmatian puppies, and adoptive mother of 84 more puppies rescued from Cruella De Vil.

Perdita is very well-mannered, elegant, and radiant; a complete foil to Pongo's goofy nature. She is also rather stern and appears to be a tad more prominent when it comes to disciplining her children, as well as Pongo.

Despite her well-coordinated nature, Perdita tends to be incredibly worrisome in hectic situations and prefers to avoid oncoming conflict by leaving the scene, as shown when Cruella visits. She is also rather observant and appears able to sense nearby danger, being the only one to expect Cruella's villainy even before the kidnapping of her children. A complete contrast to the optimistic Pongo, Perdita's worries can often escalate to pessimism, only to be put to rest by the always headstrong and relentless Pongo.

Even so, Perdita is a fierce warrior and will jump into battle in the situation calls for it. Like Pongo, her primary concerns are her puppies. As such, she has shown to willingly abandon her usual guidelines of self-composure for the sake of her family.