Bobby (Robert) "Streex" Bolton Jr. is the token "cool' brother, self proclaimed ladies" man. He's seen everywhere wearing his rollerblades, and appears to enjoy extreme sports like parachuting and snowboarding. Later on, he demonstrates the ability to play drums professionally. When he transforms into Streex, he becomes a Tiger Shark. He gets his name from the purple streaks on his body.
- Streex is voiced by Andrew Rannells.
- Streex, El Swordo, Rox, Manta Man, Moby Lick, and his brothers will guest star in the Pokémon crossover, Ash Ketchum Goes Over the Hedge. He, along with his friends and brothers, join the Ash's Adventures Team at the end of the film.
- Streex has a close bond with Ash Ketchum and Serena, for he is the first member of the Street Sharks Ash met and knows about Serena's crush on Ash after joining the Adventure Team. Like Brock, he's also a love expert.