Perpugilliam “Peri” Brown was an American college student who accidentally joined the Fifth Doctor during his visit to Lanzarote. She then elected to remain with him for the rest of her vacation time. She remained with the Doctor after hisregeneration into the Sixth Doctor, but found it harder to get along with him because of his newfound arrogance. She was separated from him by the Time Lords so that they could cover up the Ravolox conspiracy. According to the Master, Peri ended up wed to King Yrcanos. The unusual name meant, according to her, “she who lives in the hills”.
Melanie Jane Bush was a computer programmer. She hailed from Pease Pottage,West Sussex, at the turn of the 21st century. She travelled with the Doctor during his sixthand seventh incarnations. Although she was present for his sixth regeneration, she did not witness it, as she was unconscious at the time.
She had a temporally complex relationship with the Doctor. She met the Doctor in an order different than he met her, as Charley Pollard and River Song later would. Eventually, however, their timelines synchronised, and she had a more-or-less linear relationship to the Doctor, starting in the later period of his sixth incarnation. Her temporal relationship to the Seventh Doctor was considerably more straightforward and linear.