Shareen Costello

Shareen Costello (PROSE: Meet Rose) was a friend of Rose Tyler's. (TV: The End of the World, The Unquiet Dead, School Reunion, et al.)

Rose typically went to parties with Mickey Smith and Shareen. (PROSE: Rose and the Snow Window) According to Rose, Shareen would always say, "Don't argue with the designated driver". Rose quoted this statement after journeying with the Ninth Doctor to Platform One in the year 5.5/Apple/26. (TV: The End of the World)

Rose recalled another saying of Shareen's, "Worry about that tomorrow", while thinking about her desire to keep the Doctor secret from her boyfriend Mickey. (PROSE: Rose)

Biography
When Rose and Shareen were ten, they planned to sneak out to Danny Fennel's party and pinched a bottle of wine from Jackie's kitchen cupboard to get them in the mood. After a glass each they fell asleep, missed the party and got scolded by Jackie. (PROSE: The Stone Rose)

When Rose was in school, she would often intentionally miss class to go shopping with Shareen, and the two girls would go to look at boys. (TV: The Unquiet Dead)

When Rose was thirteen, in 2000 or 2001, Rose went on a school trip to (PROSE: Meet Rose) Paris, (COMIC: Art Attack) in France, with Shareen Costello. They were meant to go to the Musee de Louvre (PROSE: Meet Rose) to see the Mona Lisa, (COMIC: Art Attack) but they "escaped" their teachers, and caught a train to Parc Asterix. They were caught by the police when they were waiting the queue for the Menhir Express. They were sent home, accompanied by Mrs Kissock, ruining her trip as well. (PROSE: Meet Rose) Becuase they flunked off, they never got to see the Mona Lisa. (COMIC: Art Attack)

Before Rose left her home planet of Earth with the Ninth Doctor on 6 March 2005, Shareen had been upset and Rose had tried to comfort her, spending at least one night at Shareen's in her effort to do so.

After Rose returned to Earth with the Ninth Doctor, she told him that she planned to explain her twelve hours' absence from the council flat she lived in with her mother Jackie, by telling her mother that she had spent the night at Shareen's. When she went back to her home, Rose claimed that Shareen had been "all upset again". However, as Rose had actually been away for twelve months, and not the twelve hours that the Doctor had erroneously estimated, Jackie knew better than to believe her story about having been at Shareen's. (TV: Aliens of London)

After an argument with Sarah Jane Smith, Rose cited that the only time she and Shareen "fell out" was over a man, while she and Sarah Jane were similarly fighting over the Tenth Doctor. (TV: School Reunion)

Behind the scenes

 * Shareen has never appeared in the Doctor Who television series, and has only ever been mentioned by Rose. She briefly appears in PROSE: Meet Rose, although entirely in the third person.
 * In virtually all stories that mention Shareen, only her first name is given. It was only in PROSE: Meet Rose, written by Russell T Davies, that her full name was Shareen Costello.