Bloorm Vungah Bart Slitheen

Bioo Goo Von Bar Slitheen was a female member of the Slitheen family. She, her husband and a young boy who was somehow related to them helped the Xylok to escape from Earth in exchange for their revenge. Eventually, she teamed up with Sarah Jane Smith in order to stop themselves from being crushed by the double-crossing Xylok. In the end, they flew off happily. (SJA: The Lost Boy)