Sally Blackteeth
From Tardis Wiki, the free Doctor Who reference
Sally Blackteeth is one of the more famous alias' of the only Water hag to survive the dissapearance of Strepto. Among her other Alias' are Saskia Harden and possibly Jenny Greenteeth, though this had not been confirmed. Her real name is almost incomprehensible to humans.
Sally's true age is unknown but her birth predates the middle ages from by unspecified amount of time and died sometime in the 21st century when she attemtpted to travel through the rift again and was shot on sight by all five members of Torchwood.