John "Ripster" Bolton is the leader of the Street Sharks. He is the smartest and the oldest of the Bolton Brothers. He enjoys creating inventions; taking up most of his knowledge and skills from his father. He's also an avid pool player. In the first episode, he's seen riding a motorcycle. when he changes into Ripster, he becomes a Great White Shark, with teeth that can chew even through steel. John/Ripster was voiced by Lee Tockar in the 1994 TV series.
Ripster and his brothers were gene-slammed into the Street Sharks and have been fighting Dr. Piranoid and other villains.
As a Street Shark, a genetically modified human/shark hybrid, he possesses great physical strength, speed, endurance, and durability. Resulting in the trade mark shark dive that allows him to tunnel/swim through concrete like water.
Intelligence: Ripster is the smartest of the sharks and their leader.
Driving skills: Ripster is a capable motorcyclist.
Considering that the Street Sharks are similar to the Teenage Mutant Ninja Turtles, Ripster takes the place of Leonardo and Donatello as he is the leader of the Street Sharks but also the brainiac.
Ripster is similar to Reed Richard (Mr. Fantastic) from the Fantastic Four as both were the leaders of their team and the brains.