The Dark Ninja wears a black ninja mask. His head features milky eyes, a brown beard and moustache that connect and an snarling mouth with bared teeth. His torso piece is dark red with two grey, spiked shoulder pads and wrinkles. He has light nougat arms and black hands. His hips are black and his legs are red without printing.
Chris Bradford is a martial arts master, and a world-famous celebrity. Michelangelo attempts to make friends with him using social networking. Little does he know that Bradford is a member of the Foot Clan and is Shredder's star pupil. Bradford ends up mutating into Dogpound when he was bitten by Shredder's pet dog and stabs open the container of mutagen to get away from the turtles. Later the turtles encounter the mutant Bradford during a spying mission. He overwhelms them, forcing them to retreat. Mikey names him "Dogpound" after this, and all the turtles call him that from then on.
- In the show he is voiced by Clancy Brown who also voices Mr. Krabs in SpongeBob SquarePants, Lex Luthor in LEGO Batman 2: DC Super Heroes and the DC Animated Universe, and Savage Opress in Star Wars: The Clone Wars.
- In the set he cones with a ninja mask, but in the show he doesn't wear a mask (although he wears a helmet in one episode)