Legend told of a camper named Neil Fisher who was picked on by the other campers and spent so much of his time swimming in Big Moose Lake that he started to grow gills and fins and became the Fishman.
Scooby-Doo! Camp Scare
He attacked Mystery Inc. on numerous occasions.
He was caught when he attacked Daphne Blake, Velma Dinkley, Jessica, Burt, Luke and Trudy (Fred Jones and Shaggy Rogers had just been attacked when the Fishman threw the latter at the former, and Deacon already revealed himself as Babyface Boretti, respectively) and Scooby-Doo drove the Mystery Machine to chase the Fishman and as it hid in one of Moose Creek's old buildings, Scooby drove into the building, catching the Fishman under a pile of bricks; he was unmasked as the Woodsman who was then unmasked as Ranger Knudsen.
- DTV15. Scooby-Doo! Camp Scare