Captain Qwark

Captain Qwark, who's full name was Copernicus Leslie Qwark in the original series, and sometimes called Quark, and later Galactic President Qwark, who had also gone under many aliases, was a fraudulent "superhero" from the Solana Galaxy.

Trivia
Qwark befriends Marion in Ratchet & Clank's Adventure in Thomas and Friends: Sodor's Legend of the Lost Treasure.