Sylvia Dillane

Sylvia Dillane was supposed Chairman of the North Sea Boating Club. She was killed by the Slitheen Family (assuming she existed in reality and not as an alias) and was used as a disgiuse to one of them. This Slitheen was called to 10 Downing Street to join with the other Slitheen. This Slitheen was killed when Mickey Smith launched a missile called the UGM-84A at Downing Street. )DW: World War Three)