Sharkboy is one of the two titular deuteragonists of the 2005 3D film The Adventures of Sharkboy and Lavagirl, alongside Lavagirl. He was the first superhero on Planet Drool.
Sharkboy is played by Taylor Lautner, who also portrays Jacob Black in The Twilight Saga. In We Can Be Heroes, he is played by J.J. Dashnaw.
Whenever Sharkboy gets extremely angry, he goes into a "Shark Frenzy", an intense burst of energy and strength. The bubble-like La-La's get on Sharkboy's nerves.
When Sharkboy was little, he lived with his father, a marine biologist who studied great white sharks. Sharkboy helped his father by caring for and feeding the sharks. One day, an incredibly powerful electrical storm swept away the entire laboratory where Sharkboy and his father lived. Both of them survived on different life rafts on different sides of the wreckage, Sharkboy was alone. Soon, some of the sharks came, but one of them recognized Sharkboy and took him to the cave where all the other great whites lived. The sharks taught Sharkboy the ways of the shark and raised him as one of their own.
Eventually, Sharkboy began to mutate into a half-human, half-shark being. He grew gills on the sides of his stomach, he grew sharp talons for claws, his teeth became shark teeth, he grew fins, gained shark strength, shark speed, superhuman agility, superhuman hearing, incredible fighting skills, is extremely acrobatic, has internal radar, and shark-like reflexes.
Sharkboy is revealed to be King of the Ocean and cares for all sea life. Sharkboy can now be found in his Sharksub, looking for his father, who is in a submarine at the bottom of the ocean, looking for him. The coordinates of his father's location are over the hydrothermal vents, Mid-Atlantic ridge, 42 degrees west by 14 north, depth 1800 meters, near a snake pit.
- Sharkboy's only known weakness is electric eels.