Dolly Dalmatian is the female protagonist of 101 Dalmatian Street. She is one of the eldest siblings among Delilah and Doug's puppies. Both she and Dylan look after their younger siblings while their parents are busy at work.
Dolly is a tomboy that loves to have fun all day long. She is not so strict with the pups and likes to test her limits on her fun ideas with the other pups, eventhough it can sometimes be dangerous which causes Dylan to worry. She is more adventurous and outgoing than her brother, Dylan.
While Dolly tends to go behind or against Dylan's wishes, she is still a caring big sister to all their younger siblings and can be sufficiently responsible for watching out and caring for them.
Dolly has white fur with black spots, and wears three rings on her neck; one dark blue, one light blue, and one orange. She also has a black sports band like spot on all four legs.
Dolly's right ear spots resemble her father's whereas her ears and face structure somewhat resembles to Delilah, her stepmother.
In one of the images presented at the Annecy film festival panel, Dolly appears to have a light grey collar with a gold pendant and appears to have more spots around her body than usual.