Dat Tex Fine Slitheen was a male member of the Slitheen family, married to Bioo Goo Von Bar. He posed as Jay Stafford and attempted to avenge his family after their defeat by Sarah Jane Smith. He ended up forming an alliance with her, Alan jackson and marie jackson broke in to his house ,whilest looking around Alan opened a door and found a human skin suit hung up on a peg like an item of clothing.He helped Xylox or Mr smith too escape.But after helping sarah jane,he leaved earth at the end.