Moon Knight then gained a backup strip in "Hulk! Magazine" #11–15, #17–18, and #20, which saw the character first drawn with artist Bill Sienkiewicz on issues #13–15, 17–18, and #20 as well as a black and white story in the magazine publication "Marvel Preview" #21. Sienkiewicz's Neal Adams-influenced art style helped cement the early perception of Moon Knight as a mere Batman clone. The "Hulk" backups and "Marvel Preview" issue, which were all written by Doug Moench, provided Moon Knight with a partial origin story and introduced one of his most notable recurring villains: Randall Spector, who would later become Shadow Knight.