Rosheen and Klift were a pair of master thieves, and part of Sheldukher's crew. By 2680, holovids had been made about their exploits, with Lithola Baxter playing Rosheen and Arrad Swanson playing Klift. The Doctor knew of worlds ruined by their crimes.
After stealing Project FXX Q84 from Checkley's World, Sheldukher and his crew went into suspended animation whilst the Project (which became the Cell) searched for Sakkrat.
Awakened when they arrived at Hogsumm, which the Cell believed was the location of Sakkrat, Rosheen was killed by Chelonians. (PROSE: The Highest Science)