- "I am the Bad Wolf. I create myself."
- Rose Tyler (DW: The Parting of the Ways)
After looking into the Heart of the TARDIS, Vortex energy (if not the Time Vortex itself) filled Rose Tyler. Newly empowered, she piloted the TARDIS back to the Doctor. A nimbus of light surrounded her and shone through eyes. Rose's natural London accent also vanished. She also possessed the destructive and creative powers of a goddess, enabling her to destroy an entire Dalek fleet with her mind alone and to have power over time and space.
While possessed of these gifts, Rose/the entity out to spread the Bad Wolf meme throughout many worlds and times. This way, the Doctor and Rose herself, in the past, would eventually follow the clues to enable them to defeat the Daleks.
Apart from the Dalek fleet, Rose also destroyed all the Daleks on Satellite Five. She also restored Captain Jack Harkness to life. (DW: The Parting of the Ways) As shown subsequently, Jack could also no longer die and had a number of other newfound powers. (TW: Everything Changes onwards).
- We do not know if she also restored to life the other victims of the Daleks or restored the damage down to Earth itself done by Dalek weapons used in planetary orbit.
The Doctor restored Rose to her merely human self by orally absorbing the Vortex energy into his own body, a process that would prove destructive to his cellular structure and so prompt the Doctor's next regeneration. (DW: The Parting of the Ways)
Upon her meeting with the werewolf host, that entity noted that Rose also had "something of the wolf" in her. (DW: Tooth and Claw.)
Notes
The name "Bad Wolf entity" does not appear in the story itself.