The Slitheen are a family group of Raxacoricofallapatorians and are evil aliens in the Doctor Who series, and they are wanted criminals from their home planet Raxacoricofallapatorius and are tracked down by the Judoon and law abiding Raxacoricofallapatorians. They are large and very bulky in appearance. They have puppy like eyes and long arms with Claws. They can kill humans and use their bodies as disguises, by using high tech equipment attached to their necks it helps them fit into Human skins. Female slitheen are able to shoot a poisonous dart from there fingers.