This topic might have a better name.
Slitheen Sylvia, following the precedent set officially in the credits for Death on the Mile [+]Error: Code 2 - no data stored in variables, cache or SMW..
Talk about it here.
"Sylvia Slitheen" is a title based upon conjecture.
Check the behind the scenes section, the revision history and discussion page for additional comments on this article's title.
A member of the Slitheen family posed as Sylvia Dillane, using her skin as a suit. She was killed when a missile hit 10 Downing Street. (TV: World War Three)
Post-mortem[]
Another group of Slitheen that attempted to drain Earth's sun of its energy in the 2000s were motivated in part by the loss of the Passameer-Day Slitheen. (TV: Revenge of the Slitheen)