7) DOCTOR REGULUS
Also known as Alpha Leonis, Regulus is the brightest star in the constellation Leo. Regulus is suspect to be a binary star, but only the main-sequence star is visible from Earth, with only the gravitic effects indicating the presence of a second, presumed white dwarf companion star.
Dr. Zaxton Regulus worked in the Metropolis Fusion Power center when an accident nearly killed him. Fired for his negligence, he returned to murder his boss’s son in revenge, only to give the boy super-powers as Legionnaire Sun Boy. Regulus took his grudge way too far, repeatedly returning repeatedly to attack Sunny and the Legion Of Super-Heroes with powers derived from radioactive gold…