|This needs a stretch. (Feel free to remove when satisfied of completion.)|
The Phantom of the Dinner Theater was the disguise of an unnamed man who acted for unknown reasons.
He is a blue-skinned ghost with black hair. He wears a blue shirt, a cook hat, a ripped cape, and a little bit beard. He has red eyes and sharp teeth. He also seems to have a robotic eye on his right.
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Scooby-Doo (DC Comics)
Shaggy and Scooby defeated him by fast-talking him into thinking he was trying out for a movie with "kung-food" fighting. They threw food at him, which he had to catch in his mouth and eat. Once he was overstuffed he was easily captured.