Simon Bar Sinister

Simon Bar Sinister is the scheming mad-scientist villain from the Underdog animated universe, translated to comics beginning in 1975. He perpetually plots to conquer or cause chaos, only to be foiled by the superhero Underdog.

Few villains carry a name quite as deliciously sinister as Simon Bar Sinister, who slunk onto the Bronze Age comics page in Underdog #2 in 1975 and stuck around for nearly two decades of mischief. Published through Spotlight Comics in the 1980s, Simon keeps wonderfully colorful company — sharing his pages with the heroic Underdog, the ever-imperiled Sweet Polly Purebred, and the shifty Riff Raff, among others. His five catalogued appearances may be modest in number, but for fans of the beloved animated world that inspired these comics, he's an essential piece of the puzzle — the archetypal scheming antagonist who gives a superhero something worth flying toward.