Satan Sam is an evil devil and ex-leader of Circus Doom. He is also the arch-nemesis of Dr. Dolphin, Frederwick's superhero secret identity. He once ruled Circus Doom, the evil circus from Hell, but was kicked out when Deedle beat them once again, taking only his loyal henchman Devil dan, the badass mask wearing strongman. He then began to take over the underworld mobs and got involved with Dr. Dolphin, and was beaten and then the endless battle between them began. He is fireproof, can breath fire and is an expert at circus tricks.