The character's origin was shown in Fantastic Four #66 (Sept 1967) in a story written by Stan Lee and pencilled and co-plotted by Jack Kirby. The character also appeared in Fantastic Four #67 (Oct 1967) and Thor #163-166 (April–July 1969). Because his role in the Fantastic Four story was minor, sources disagree on which issue is the character's true first appearance. Writer and then Marvel editor-in-chief Roy Thomas and penciler Gil Kane significantly revamped Him as the allegorical Messiah Adam Warlock in Marvel Premiere #1 (April 1972).
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