Blackbot the Pirate, originally Blackbeard the Pirate, was a buccaneer from the Mobian Age of Sail who was transformed into a robot by Doctor Robotnik's Robot-Transmogrifier Ray in the Adventures of Sonic the Hedgehog television series. He had a peg-leg and (until turned into a robot) a black, chinstrap beard.
Blackbeard possessed a map showing the location of the Chaos Emerald of Invisibility. In an attempt to find the Emerald, Doctor Robotnik, Scratch and Grounder time-traveled into the past and landed on Blackbeard's ship. The fierce pirate easily defeated Scratch and Grounder in combat (slicing Grounder to ribbons with his sword, then beating Scratch with nunchaku). However, Robotnik turned him into a robot slave with his robot-transmogrifier ray, re-naming him Blackbot the Pirate.
When Sonic and Tails arrived to stop Robotnik, Blackbot fought Sonic atop the ship's mast. Although Sonic managed to knock Blackbot to the deck, the robot responded by capturing Tails and forcing him to walk the plank, leading Sonic to leap into the water to save him.
Blackbot then accompanied Robotnik on the search for the Chaos Emerald, and fought Sonic again. However, when Sonic managed to obtain the Emerald and become invisible, he used his razor-sharp spinning to slice Blackbot to ribbons.