|This needs a stretch.|
The Sea Heap was the disguise of an unknown criminal.
It was a dark greenish-brown sea monster covered with matching seaweed.
Insert details here.
Scooby-Doo! (DC Comics)
Scooby-Doo and the gang were trying to catch it, but Scooby and Shaggy Rogers got caught in its trap instead. The Sea Heap stared disbelieving at the duo, thinking, "Darn! That trap and those delicious Mostess Fruit Pies would have been mine if it hadn't been for those meddling kids." 
- He was never shown out of his disguise.