Davey is a supporting antagonist of the Sarah Jane Adventures story "Invasion of the Bane".
He was portrayed by Jamie Davis.
Davey was an agent of the Bane who was sent to planet Earth to help take it over. Their plan was to manufacture an addictive drink called Bubble Shock! that secretly contained a substance secreted by the Bane Mother. This substance would take over people's minds and make them slaves of the Bane. It was designed for 100% of the population to like it.
Davey posed as a PR agent for Bubble Shock!, giving people tours of the factory during which they would be given free samples. Unknown to them, their minds were sampled and the data fed into an artificial human named the Archetype created by Mrs. Wormwood to test out Bubble Shock! on.
After Kelsey Hooper's phone alarm frightened the Bane Mother, Davey ordered everyone out of the factory before abducting her, revealing that the creature was his mother. He was ordered to find Maria Jackson, Sarah Jane Smith and the Archetype, which had escaped, but failed because his orders to observe human customs in order to fit in prevented him from entering the women's toilets.
Davey was sent to kill Sarah Jane because Mrs. Wormwood thought she might be a problem. After deactivating his image translator, allowing him to appear in his true form, he attacked her house but was scared away by an alien repellent spray. As punishment, he was eaten by the Bane Mother.