Slithean

a slithean is an alien from doctor who. They stand 8ft tall and face the 9th doctor played by Christopher Eccleston. In the 3 episodes that Slitheans appear in they are portrayed as very hostile creatures for example in aliens of London and world war 3 the Slitheans are trying to blow up the earth and sell it as feul. In boomtown (another Slithean episode) Margaret Slithean trys to open a time rift to send herself home. But to save the world the doctor sends her home