The Slitheen are a fictional family of massive, bipedal extraterrestrials from the science fiction television series Doctor Who Doctor. They first appeared in the 2005 series Aliens of London and World War Three.

They are creatures of living calcium, hatched from eggs and native to the planet Raxacoricofallapatorius. While, strictly speaking, the name "Slitheen" refers to a specific family, the term has been used by the Doctor and Rose to refer to the Raxacoricofallapatorian race in general.

The Slitheen are a ruthless criminal sect whose main motivation is profit, but they have an almost ritualised love of hunting, being trained to hunt and kill from a young age. The members of the family are convicted criminals on their planet, being subject to the death penalty if they return.

To be honest we weren't all that keen as a Doctor Who 'enemy' at first, however as they appeared in more episodes, including the Sarah Jane Adventures we warmed to them as we did to the Space Pig whose concept was taken further in the Daleks of Manhattan. IN any event this Slitheen and Space Pig figure set ina  worthwhile addition to your Doctor Who toys collection.