Dani is the most successful Danny clone created by Vlad Plasmius in an attempt to create his own apprentice in the likeness of Maddie’s son. However, as a female with unstable hybrid DNA, she was seen as a failed experiment and manipulated as a tool to capture Danny. With her own consciousness and will, she loved her Father before realizing his dastardliness, and risked her own life to stop the process of stealing her "cousin’s" DNA.

Dani is spunky, and takes after Danny in interests and hobbies. She is playful and devious, liking jokes and pranks. Without Vlad to care for her, she has no source of shelter or proof of existence. So she lives on the streets, and until her DNA was finally stabilized, had to conserve her ghost energy lest she dissolve into ectoplasm. Whether or not she will take after Danny as a superhero is unknown, but knowing her, she’ll likely help Danny out in a cinch.