Illena of Kromal
An enticing female dignitary from the planet Kromal who secretly plans to turn Superman to stone using a device called the "Medusa Skullcap" (made from the ancient Greek Gorgon's head itself). Resenting the time Superman spends with her, the jealous Lana Lang and Lois Lane discover Illena is actually working for the Superman Revenge Squad, but Lois alone is able to steal the skullcap and help the Man of Steel (SGLL No. 52/3, Oct 1964: "The Lois Lane-Lana Lang Truce!").