The fourth publication under National Allied Publications would be "Action Comics" (1938). Issue #1 introduced the superhero, Superman, created by artist Joe Shuster and writer Jerry Siegel. Donenfeld was initially repelled by the seemingly ridiculous fantasy of the character and ordered it never appear on the cover again. However, the property proved tremendously popular and profitable enough to change his mind by issue 7 to make "Superman" the title's feature. As such, Donenfeld enjoyed not only healthy comic book sales, but also in merchandising such as toys, costumes and even a radio show featuring the character. At the end of 1941 Donenfeld's comic businesses took in $2.6 million. Shuster and Siegel had sold the rights for the character to National Allied Publications, so as Donenfeld became rich, they continued on flat employee fees. Legal actions between the creative pair and National Allied Publications for compensation would continue for decades to come, but Donenfeld allowed Liebowitz to handle this side of his empire.