O'Neil's first assignments involved two strategies for bolstering DC's sales. One approach centered on the creation of new characters, and O'Neil scripted several issues of "Beware the Creeper", a series starring a new hero, the Creeper, created by artist Steve Ditko. From there, DC moved O'Neil to "Wonder Woman" and "Justice League of America". With artist Mike Sekowsky, he took away Wonder Woman's powers, exiled her from the Amazon community, and set her off, uncostumed, into international intrigues with her blind mentor, I Ching. These changes did not sit well with Wonder Woman's older fans, particularly feminists, and O'Neil later acknowledged that de-powering DC's most well-known superheroine had unintentionally alienated readers. In "Justice League", he had more success, introducing into that title the first socially and politically themed stories, setting the stage for later work on "Green Lantern/Green Arrow". He and artist Dick Dillin made several changes to the membership of the JLA by removing founding members the Martian Manhunter and Wonder Woman.