Lynda Moss is played by Marissa

She has been staying with the 9th Doctor

Lynda Moss is from the episodes Bad Wolf and Parting of Ways of Doctor who.  She was one of the Big Brother contestants onboard the Game Station in the year 200100.

When she met the Doctor she introduced herself as Lynda with a Y, not an I, for she was evicted for damaged property.  This of course became important later as it is how he was able to work out what was happening and why he was put there in the first place.  The Doctor, on his way out, asked her to come with him, told her she was "Sweet" and that in her world no one sweet survives in games like that. 

As the two episodes came to an end Lynda was left to watch over what was happening with the Dalek's as they fought to stop their attempt to rise yet again.  Lynda was certain she was secure in that room, but the Dalek's rose outside the gamestation itself and when the window was blown on the observation deck Lynda was killed instantly.

For the purpose of this game, when that happened she will be pulled through the vortex and dropped in Cardiff.