Burlo, an enemy of Popeye, is a character that appeared in the comic Thimble Theatre in 1959, created by Ralph Stein and Bela Zaboly near the end of their tenure on the strip (in the storyline "Nonny the Equine Genius"). Burlo is a cutthroat that fashions himself as a honest sea captain, aided by his equally corrupt crew. Most notably, Burlo is the twin brother of Bluto, although he distinguishes himself from his twin by not having a beard.
Unlike Brutus, who was created as a stand-in for Bluto and was only made to be the latter's twin after a period of decades, Burlo was presented as the more popular villain's brother from the start. It is unclear if this makes him either an alternative to Brutus or a third brother, making them in fact triplets.