Slitheen to return in 'Doctor Who' spin-off

Doctor Who monsters The Slitheen will make their comeback in a two part episode of new spin-off show The Sarah Jane Adventures, the BBC announced today.

The green, baby-faced foes with a flatulence problem will disguise themselves as teachers in a two-part story entitled 'Revenge of the Slitheen'. They will encounter The Doctor's former companion Sarah Jane Smith, played by Elisabeth Sladen, alongside her younger friends first seen in the pilot episode 'Invasion of the Bane', which was shown on January 1.

Written by Gareth Roberts, who penned recent Doctor Who episode 'The Shakespeare Code', the story will see the Slitheen make their first appearance since 'Boomtown' in the first season of the revived time-travelling show. They had previously made their debut in the 'Aliens of London/World War Three' two-parter, where the aliens from the planet Raxacoricofallapatorius took on the guise of politicians.

The Sarah Jane Adventures will be screened on BBC One and CBBC at the end of September and will run for ten episodes.