Eviless was introduced in Wonder Woman #10 (1944), but not formally by name until issue #28. A slave driver from the subatomic world of Saturn, Eviless and Duke Mephisto Saturno (of the Saturnian Invasion Force) battled Wonder Woman. Although defeated by Wonder Woman, she later returned and freed several prisonors from Transformation Island (criminals previously captured by Wonder Woman), and banded them together as Villainy Inc. The team was unsuccessful against Wonder Woman, and were defeated and captured.