The Spooky Space Kook was the costume and alias of Henry Bascombe. The ghost was well known for its high pitched haunting laugh as well as its ability to levitate. He was using the identity of the Spooky Space Kook to haunt an abandoned old airfield in a "UFO" which turned out to be a customized plane. Scooby and the Gang defeat the Spooky Space Kook when they trap him in an air tunnel blowing off his costume.
Later in Scooby-Doo Mystery Incorporated, the Spooky Space Kook costume is seen on display in the Crystal Cove Spook Museum.
It is a blue skull-faced alien which seems to do nonstop giggling. It also wears a strange spacesuit with clawed hands.