Master Buns, also known as Lord Buns and occasionally Rubber Buns, is the fursona of the artist Rubberbuns as well as the main antagonist of a series of Web-comics by the author.

Master Buns is a male anthropomorphic brown bear, an older gentleman with a short and stocky build, dressed ever dapper. Master Buns is a perverted supervillain who specializes in the creation or rubber, semi-sentient, artificially intelligent, symbiote suits, which he often has bond to superheroes, vigilantes, and low rank criminals, to transform them into loyal and mindless drones, sex slaves, and henchmen and augment their physical strength and power.