Donna Noble (The Rogue Planet)

In one parallel universe, Donna Noble warned people about the stars going out.

Biography
According to Donna, a woman who called herself “Bad Wolf” warned her that the stars were going out. This led to her telling people about the prophecy known as the “prophecy of the three comets”. (AUDIO: The Rogue Planet)

Legacy
While in this universe, Rose Tyler guessed that she might find a version of Donna in another universe and warn her about the three comets, which would eventually seep into this universe’s Donna’s subconscious. (AUDIO: The Rogue Planet)